Category: space cartoon

IWSG: Insecure Astronauts Need Support, Too

~ J.S. Pailly ~ 14 Comments

Welcome to this month’s meeting of the Insecure Writers’ Support Group, a blog hop created by Alex J. Cavanaugh and co-hosted this month by Jenni Enzor, Jemima Pett, Jamie of Uniquely Maladjusted but Fun, and Kim Lajevardi.  Are you a writer?  Do you feel insecure?  Well, then this is the support group for you!  Click here to learn more and to see a list of participating blogs.

Hello, friends!

As a writer, who are your heroes?  Who are your idols?  Probably other writers, right?  Most of my heroes are other writers, like Isaac Asimov or Arthur C. Clarke; but as I pursue my writing dreams, I also find inspiration from people outside of the writing world.  So today, I want to tell you a little about Italian astronaut Samantha Cristoforetti.

You may know Cristoforetti as the first Italian woman in space.  You may also know her as the person who cosplayed as a Starfleet officer aboard the International Space Station.  A few years back, I read Cristoforetti’s autobiography, Diary of an Apprentice Astronaut, because I wanted to know more about the daily life of astronauts (important stuff to know if you want to write science fiction).  I did learn the stuff I wanted to learn, but Cristoforetti also wrote about the doubts, fears, and insecurities that sometimes held her back from her own dreams.

It’s been a while since I read Cristoforetti’s book, so I don’t remember all of her credentials or all of the details of her career.  What I do remember is that she speaks five or six different languages, has multiple degrees in science and engineering, and trained as a fighter pilot for the Italian Navy—and then, on top of all that, she went to space.  Twice.

Samantha Cristoforetti is just so gosh darn impressive.  And yet, as she confesses in her book, she still struggles with the same doubts and insecurities that I do—that all of us do.

What’s the lesson here?  I don’t know, but my take away is this: self-doubt is normal.  It’s natural.  It’s just another part of being human.  I feel it, you feel it, E.S.A. astronaut Samantha Cristoforetti feels it.  There’s no shame in doubting yourself.  The real problem—the real thing to avoid—is when self-doubt transforms into self-sabotage.

WANT TO LEARN MORE?

Here’s an article from Italy Magazine celebrating Cristoforetti’s accomplishments as the first Italian female astronaut.

And here’s an article from Space.com about her love for Star Trek and why she wore a Starfleet uniform aboard the I.S.S.

And if you want to read Cristoforetti’s book, here’s a link to her book on Amazon.

Mercury’s #1

~ J.S. Pailly ~ 9 Comments

Hello, friends!

I love Mercury.  He’s the planet closest to the Sun, which makes him the first planet of our Solar System.  Sadly, that seems to be the limit of what the average person knows about Mercury, so today I’d like to share just a few other ways Mercury wins first place.

First off, if there were a footrace among all the planets of the Solar System, Mercury would win.  Easily.  Mercury is the #1 fastest moving planet in the Solar System.  This has a lot to do with Kepler’s laws of planetary motion and Netwon’s law of universal gravitation, but I think I can explain this without digging into Kepler or Newton’s math.  Imagine you’re a planet and you don’t want to fall into the Sun.  You’ll need to keep moving to maintain your orbit.  The closer you are to the Sun, the more you’ll have to fight the Sun’s gravity, and thus the faster you’ll have to move.  Mercury is the closest planet to the Sun; ergo, he’s the fastest.  (If you’d like to learn more about the math behind planetary motion, click here.)

Since Mercury is the planet closest to the Sun, you might assume Mercury is also the hottest planet.  But no, Venus is hotter than Mercury (how that happened is a story for another time).  However, Mercury does have the #1 most extreme difference between daytime and nighttime temperatures.  Daytime temperatures climb as high as 430 degrees Celsius (800 degrees Fahrenheit).  At night, the temperature rapidly drops as low as -180 degrees Celsius (-290 degrees Fahrenheit).  Why?  Because Mercury has virtually no atmosphere.  Atmospheres are like insulating blankets for planets.  Without an atmosphere, Mercury can’t retain heat at all, so all the extreme heat Mercury gets during the day is immediately lost to the vacuum of space at night.  (To learn more about Mercury’s daytime vs. nighttime temperatures, click here.)

There are plenty more ways Mercury is #1, but I’m only going to share one more with you today.  Mercury is the #1 most heavily cratered planet in the Solar System.  How did that happen?  Well, once again, Mercury has no atmosphere, which means all the smaller meteoroids that would burn up in the atmospheres of other planets make it straight through to the ground on Mercury.  Additionally, there’s very little geological activity on Mercury.  No volcanic eruptions, no major earthquakes (mercuryquakes?)… at least not in the last 3.5 billion years.  On other worlds, geologic activity helps erode and erase old impact craters, but that’s not happening on Mercury.  So Mercury gets hit more easily and has a harder time erasing old impact craters.  Those two facts add up to Mercury having more impact craters today than any other planet in our Solar System.  (To learn more about Mercury’s overabundance of craters, click here.)

In my humble opinion, Mercury doesn’t get as much love as he deserves.  I don’t know why that is, but I hope this post has piqued your curiosity and helped you appreciate Mercury a little bit more.  At the time of this writing, the BepiColombo space probe (a joint venture by the European and Japanese space agencies) has completed several flybys of Mercury.  If all goes according to plan, BepiColombo should settle into orbit around Mercury in November of this year (2026).  Here’s hoping BepiColombo will discover even more reasons to love the first planet from the Sun.

The art is today’s post is my own original work.  If you like my art, please consider visiting the I-Love-Space store on RedBubble.  Even if you don’t buy anything, just visiting and clicking the “like” button on my work helps me a lot (and obviously, if you do decide to buy something, that helps me even more).  Thank you, friends!

Artemis II: She’s Not Like Other Missions

~ J.S. Pailly ~ 15 Comments

Hello, friends!

It’s been a couple weeks since Artemis II went to space, looped around the Moon, and returned safely to Earth.  One thing really surprised me during this mission: I didn’t hear many people whining about the cost.  Whenever important NASA stuff is in the news, I always hear a ton of people whining about the cost.  But this time, not so much!  Which leaves me wondering: why was Artemis II different?

The most obvious explanation is that while Artemis II was up in space, there was this other major news story happening down here on the ground.  Now this is not a political blog, and I don’t want to dwell on politics too long, but we can’t ignore the elephant in the room: the war.  Just before Artemis II launched, the U.S. started a war with Iran.  That war is wildly unpopular and also extravagantly expensive.  When we keep hearing about the government spending one or two billion dollars per day on the war, NASA’s budget of $24 billion per year doesn’t sound so bad.

But I don’t think that’s the only reason.  Space launches used to be rare and extraordinary events, but in the last few years, they’ve been normalized.  With private companies like SpaceX and Blue Origin in the game, launches happen all the time now.  There were something like 300 launches worldwide last year!  Artemis II was still something new and different and very, very special; at the same time, though, it was just another rocket launch.  If we’re going to have 300 launches per year, it doesn’t seem outlandish for one of them to be a Moon mission.

Do you think I’m right about this?  Was your experience similar to mine, or did you hear more grumbling and griping about Artemis II’s price tag than I did?  Let me know in the comments below.

I will acknowledge that I did hear one complaint.  It was some political pundit who said something like: “NASA just sent billions of taxpayer dollars to the Moon!”  There’s plenty I could say in response to that, but that statement conjured such an amusing mental image in my head.  So I’m just going to leave you with this:

WANT TO LEARN MORE?

It wasn’t just me who felt like Artemis II was different.  According to this article from Forbes, the vast majority of Americans support the Artemis program and followed the Artemis II mission closely.

If you want to know more about NASA’s budget, check out this article from the Planetary Society.  It’s a great resource, not only for understanding NASA’s budget in particular, but for understanding the U.S. federal budgeting process as a whole.

And if you’re up for some more academic literature, here’s a research paper from the journal Space Policy examining how the federal government sometimes does (and sometimes does not) listen to public opinion regarding space exploration.

Aliens Don’t Exist

~ J.S. Pailly ~ 6 Comments

Hello, friends!

Today, I’d like to tell you a little about my 6th grade science teacher.  Oh, I remember him well!  Just not for the best of reasons.  For the purposes of this blog post, let’s call him Mr. M.

So one day, Mr. M. was teaching us about the formation of the Solar System, about how the planets of our Solar System were created from a cloud of dust and gas swirling round and round the Sun.  During this lesson, Mr. M. told us that our Solar System is unique.  He told us that science had not yet discovered any other planets orbiting any other stars, and he hazarded to guess that science never would.  He said that maybe there are no other planets out there for science to find.

Imagine that!  In the whole big, wide universe, there are only nine planets (Pluto was still considered a planet at the time).  And furthermore, the only nine planets in the entire universe all happen to be orbiting the same star!  That sounds pretty silly today, with over 6100 confirmed exoplanet discoveries now in the books.  It was also a silly thing to say at the time.  This would have been in 1996.  The first two exoplanets were discovered in 1992, orbiting a pulsar.  A third exoplanet was discovered in 1994, orbiting that same pulsar.  And then 51 Pegasi b, the first exoplanet discovered orbiting a sun-like star, was discovered in October of 1995.

So not only would science prove Mr. M. wrong—it already had.

I think about Mr. M. whenever someone tells me we’ll never discover alien life.  I think about Mr. M. whenever someone tells me that maybe there’s no alien life out there for us to find.

Frankly, I think about Mr. M. every time someone claims science will never do this or never explain that.  I may not have learned much in my 6th grade science class, but that class did help me learn one thing: there’s a long history of science proving people like Mr. M. wrong.

P.S.: Mr. M. also told us the Internet was just a fad and everyone would forget about it in a few years.  Again, this was in 1996.

The art in today’s post is my own original work.  If you like my art, please consider visiting the I-Love-Space store on RedBubble.  Even if you don’t buy anything, just visiting and clicking the “like” button on some of my work helps me a lot (and if you do decide to buy something, that obviously helps me even more!).  Thank you!

Mission Statement

~ J.S. Pailly ~ 1 Comment

Hello, friends!

Today is New Year’s Day, so I thought today would be a great day to restate the mission statement of this blog—except it seems I never stated the mission of this blog in the first place.  I could’ve sworn that I had.  Maybe that’s because my mission seems self-evident.  I love space.  I love learning about space, and I love sharing what I learn with others.

The learning part is really important to me.  My love of space doesn’t mean just looking up at the stars and thinking, “Ooooh, pretty!”  I don’t enjoy wonder for wonder’s sake.  My love for space means looking up at the stars, wondering what’s up there, wondering who’s out there, and then putting in the time and effort to find answers (to the best of my ability as someone who’s bad at math and doesn’t have any professional scientific training).

Learning is hard.  Finding good sources of information can be tricky, and even when you do find trustworthy sources, science is still a challenging subject.  Scientists aren’t always the most engaging or entertaining communicators.  But if learning this stuff were easy, I don’t think it would be fun.  The greater the challenge, the greater the reward when you finally do understand a difficult and complicated concept.

So on this blog, I want to tell you about all the cool stuff I learn about space.  I also want to talk about the process I go through to learn this stuff, because the research process is part of the fun.  If you don’t know much about space, I hope to inspire you to love space like I do.  And if you already love space, then I hope to inspire you to love space even more!

But there will be some of you who don’t really care about space and never will.  I want you to know that that’s okay.  We can still be friends.  Not everybody has to love the same things.  I have an I.R.L. friend who’s not very interested in space, no matter how much I talk about it, but she paid me one of the very best compliments I’ve ever received: “You make me want to go learn stuff.”

That’s the real mission of this blog: to spread the love of learning.  I want to set a good example by picking a topic that fascinates me (space, obviously!) and learning everything I can about it.  For you, maybe it’s sports trivia, or Greek antiquities, or horses, or the history of music in video games, or the architecture of Frank Lloyd Wright… it doesn’t matter.  What matters is that learning is one of the greatest joys in life.  I love learning, and I hope you do, too.

Thanks for reading, friends!  Talk to you soon!

P.S.: If you like my art, click here to visit my art store on RedBubble.  Even if you don’t want to buy anything, just visiting and maybe clicking the “like” buttons on my art will help me a lot (and if you do want to buy something, that would help me a lot, too!).

3I/ATLAS: But What If It Were Aliens?

~ J.S. Pailly ~ 4 Comments

Hello, friends!

Right now, there’s an interstellar object passing through our Solar System.  Astronomers have named this object 3I/ATLAS, and in my last post I explained how 3I/ATLAS is just a comet and NOT an alien spacecraft.  But let’s pretend for a moment that an alien spaceship were traveling through the Solar System, perhaps on some sort of survey mission.  What would the aliens see when they turn their scientific instruments toward Earth?  How much would they learn about us and our planet?

Much depends on how technologically advanced we imagine these aliens to be, of course, but we humans have been observing Earth from space for decades now.  We know some things are pretty obvious about our planet, even when viewed from a great distance away.  For a start, the aliens would notice that Earth has an abnormally large moon.  They’d also notice that Earth has oceans.  The glint of sunlight reflecting off water would give that away.  And then there’s oxygen.  The spectrographic fingerprints of oxygen are all over Earth’s atmosphere.

Do these aliens breathe oxygen like we do?  Maybe, maybe not.  Either way, Earth’s oxygen-rich atmosphere would make the aliens stop and think, “Huh, that’s weird.”  Most planets don’t have atmospheres like that.  Even weirder, though, the aliens would also detect traces of methane in our atmosphere.  Methane is an easily oxidized chemical, so you’d think all that oxygen would oxidize any atmospheric methane out of existence pretty quick.  Something must keep replenishing the methane as quickly as oxygen destroys it.  Something alive, perhaps?  It’s hard to guess if the aliens would reach that conclusion yet.

As the aliens draw nearer, they’d soon notice this odd green stuff covering much of Earth’s landmasses.  To say that in a more technobabbly way, the extraterrestrials would detect a chemical substance with a strong reflection spectrum in green light (and an even stronger reflection spectrum in infrared).  You and I know what all that green stuff is, but would the aliens figure it out?  Do they have plants back home?  Do their plants contain chlorophyll and perform photosynthesis like ours do?  Hard to say, but Earth’s green stuff would at least make the aliens think, “Huh, that’s also weird.”

A few more things our hypothetical aliens would notice: a substantial ozone layer, continents shaped by recent (or possibly ongoing) tectonic activity, a complex hydrological cycle with water existing as a solid, a liquid, and a gas… oh, and radio emissions.  Lots and lots of narrow-band, amplitude modulated radio emissions, which cannot possibly be a natural phenomenon.

The idea that aliens many lightyears away are watching I Love Lucy, The Brady Bunch, or The Dick Van Dyke Show is probably false.  As radio/television broadcasts propagate through space, those signals grow weaker and eventually blend into the background radiation.  But for the purposes of this blog post, we’re imagining that an alien spaceship is right here in the Solar System with us.  They’re close enough to pick up our broadcasts.  At that point, the aliens wouldn’t just think, “Huh, weird.”  They’d be forced to conclude not only that life exists on Earth but that intelligent life exists on Earth (unless they start watching our news or listening to our talk radio; if they do that, they might second guess the “intelligent” part).

How much more could the aliens learn about us?  Again, it depends on how technologically advanced these aliens are.  Consider the stuff I listed in this blog post to be the bare minimum of what they’d know.

WHAT TO LEARN MORE?

This blog post is based off several research papers, which are listed below.  Detecting life on a planet—even a planet teeming with life, like Earth—is more of a challenge than you might realize.  If that’s a topic you want to learn more about, please check out some of the papers below, especially the first one (the one written by Carl Sagan).

The art in today’s post is my own original work.  I didn’t take it from the Internet or ask an A.I. to generate it.  If you like my art, please consider visiting my store on RedBubble.  Shopping on RedBubble is a great way to support artists (like me!) so that we can keep doing what we do.  Thank you!

3I/ATLAS: It’s Not Aliens

~ J.S. Pailly ~ 9 Comments

Hello, friends!

You know the expression “If it looks like a duck, swims like a duck, and quacks like a duck, it’s probably just a duck”?  Well, to a certain kind of person, if it looks like a duck and swims like a duck and quacks like a duck, then it must be an extraterrestrial life form that the government has disguised as a duck.  Right now, there’s an interstellar object passing through our Solar System.  It looks like a comet.  It moves like a comet.   It’s grown a tail like a comet.  I think you know where I’m going with this.

Astronomers have named this object 3I/ATLAS.  The “3I” part of the name means this is the 3rd interstellar object we’ve spotted inside our Solar System (the previous two were 1I/Oumuamua and 2I/Borisov).  The “ATLAS” part means this object was first detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS for short).  Ever since the discovery of 3I/ATLAS, there’s been a lot of speculation online, in the news, and even in some corners of the scientific community about how this object might/must be an alien spaceship or alien space probe—or even an alien space weapon!  But this is coming from the same people who cry aliens whenever anything even remotely interesting happens in outer space.

As someone who loves space, I find all this “BuT WhaT iF iT’s ALieNs?” talk annoying and disheartening, because 3I/ATLAS doesn’t need to be aliens in order for it to be interesting.  For example, did you know 3I/ATLAS is insanely old?  By most estimates, it’s approximately 7 billion years old, which makes it 50% older than our entire Solar System.  3I/ATLAS also seems to be composed of unusually high quantities of frozen carbon dioxide (and correspondingly low quantities of frozen H2O).  I’ve read several different possible explanations for this, but the one I find most intriguing is that 3I/ATLAS may come from a star system where water is extremely scarce.

When we learn new things about outer space, ironically, we often end up learning even more about the Earth.  I’ve said before on this blog that our ability to compare and contrast Earth with other planets in the Solar System has taught us a great deal about our home planet.  Now our science has advanced to a point where we can identify interstellar objects as they pass through our Solar System.  We can observe them and study them and use that information to start comparing and contrasting our Solar System with whatever star systems these objects originally came from.  I don’t know what we’ll learn by doing that, but I know we’re going to learn something, and I love that for us!

As for the aliens… someday, I believe we will discover alien life, and that day will be awesome!  If 3I/ATLAS really were an alien spacecraft, that would be awesome, too, but that hypothesis is based more on wishful thinking than actual evidence.  I, for one, think the actual evidence about comet 3I/ATLAS tells a far more interesting story than all the wishful thinking in the world ever could.  How about you?

WANT TO LEARN MORE?

There’s a lot of confusing and conflicting information out there right now about 3I/ATLAS, even without the people crying “it’s aliens!”  That’s because 3I/ATLAS is still under heavy observation at the moment, and new data is coming in at a rapid pace.  That being said, I’m going to recommend these two articles, which I feel give a pretty good synopsis of how much we know so far and how much more we’re hoping to learn.

I also want to recommend this video from Hank Green, titled “Why it’s Never Aliens,” for a more detailed analysis of why, whenever people cry aliens, it never turns out to be aliens.

I Love Earth

~ J.S. Pailly ~ 8 Comments

Hello, friends!

As you know, I love space, and as you might imagine, I socialize with a lot of other people (both online and I.R.L.) who also love space.  But in the last year or so, I’ve noticed a change in the space love community.  It used to be that if you loved space, it naturally followed that you also loved planet Earth.  But that’s not the case anymore.  Not for everybody.  These days, for some people, it seems that love for space equals disdain for Earth.

I’ve seen this disdain for Earth expressed in some of the recent discourse about the Moon and Mars, as well as other proposals for the colonization of outer space: rotating space stations, generation ships to other star systems, far future megastructures encircling our Sun.  Basically, these people say Earth sucks.  Earth is boring.  And Earth’s doomed anyway, so let’s cut our loses and move on from this stupid blue planet.  Let’s all go to Mars, or Proxima Centauri, or anywhere else that might be nominally habitable for humans.

So I want you to know something: when I say I love space, that does not mean I share in this weird disdain for Earth.  As of the time of this writing, astronomers have confirmed the discovery of about 6000 exoplanets (planets orbiting stars other than our Sun), but they have yet to confirm the existence of a single exoEarth.  Not one.  For me, loving space means having the context to understand how extremely rare, extremely special, and extremely precious Earth is.

I love space.  It naturally follows from my love of space that I also feel a deep and profound love for the Earth, too.  How about you?

The art in today’s post is my own original work.  I didn’t take it from the Internet or ask an A.I. to generate it.  If you like my art, please consider visiting my store on RedBubble.  Shopping on RedBubble is a great way to support artists (like me!) so that we can keep doing what we do.  Thank you!

How Venus Saved Earth’s Ozone Layer

~ J.S. Pailly ~ 6 Comments

Hello, friends!

Fun fact about me: Venus is my favorite planet.  I just feel like, out of all the planets in the Solar System, Venus has the most personality.  Granted, it’s the personality of a mad scientist, or maybe a serial killer.  But still… so much personality!  Anyway, today I want to share one of my favorite stories about my favorite planet.  It’s the story of how Venus (the mad scientist/serial killer planet) accidentally saved all life on Earth.

In 1962, NASA’s Mariner 2 space probe became the first spacecraft to send data back from Venus (the Soviet Union’s Venera 1 probe visited Venus a year before, but due to communications issues, it couldn’t transmit any data back to Earth).  In the decade that followed, more missions to Venus sent back even more data, and we learned that Venus spends all her time brewing this super deadly mix of chemicals in her atmosphere.  As I said, Venus has the personality of a mad scientist/serial killer.  If future astronauts ever try to land on the surface of Venus, she will straight up murder them.

As scientists in the 1960’s and 70’s catalogued all the absolutely terrifying stuff in Venus’s atmosphere, they realized something was missing: ozone.  I won’t go into all the chemistry details here, but given the kinds of chemical reactions happening on Venus, Venus should have produced something similar to Earth’s ozone layer.  And yet little to no ozone was detected.  So what gives?

Well, among all the other horrifying chemicals in Venus’s atmosphere, there are some chlorine-based molecules.  Turns out those chlorine-based molecules were interfering with ozone production.  Mystery solved!  But then somebody said, “Wait, what about chlorofluorocarbons?  Those are chlorine-based molecules, and we’ve been releasing them into Earth’s atmosphere for decades.”  More research followed, comparing and contrasting Earth and Venus.  It turned out that, yes, chlorofluorocarbons (better known as C.F.C.s) were interfering with Earth’s ozone layer just as similar chlorine-based molecules interfered with ozone production on Venus.

By the mid-1970’s, scientists were calling for action.  By the end of the 1980’s, politicians were listening, and they actually did something about the problem.  The Montreal Protocol is an international agreement restricting the production and use of C.F.C.s and other ozone-depleting chemicals.  As a direct result, today Earth’s ozone layer is healing, and there’s hope that the ozone layer will fully recover by the end of the 21st Century.  Would scientists have figured out what C.F.C.s were doing to Earth’s ozone layer without Venus’s help?  Probably.  But they might have figured it out too late.

A couple months ago, I did a post about solar storms and the danger they pose to our modern technological world.  In that post, I cited solar storms as one of the reasons why space exploration is worthwhile, despite the notoriously high price tag.  This story about Venus and the ozone layer?  This is another example of why space exploration is worth the money.  Comparing and contrasting Earth with another planet helped save us from disaster once before.  Who knows what other valuable lessons Venus (or Mars, or any of the other planets) still have to teach us?

WANT TO LEARN MORE?

Click here for a video from Sci-Show entitled “How Studying Venus Saved Earth.”

Or click here for an article from The Conversation entitled “What Venus has taught us about protecting the ozone layer.”

If you’re wondering why the ozone layer’s so important, click here for an article from How Stuff Works entitled “What If the Ozone Layer Disappeared?”

And lastly, some of you may be thinking, “Hey, didn’t they discover an ozone layer on Venus just a few years ago?”  You’re right, they did!  It’s at a much higher altitude than Earth’s ozone layer, and it’s much thinner and more tenuous, too.  But Venus does have just a little bit of ozone after all.  Click here to learn more.

The art used in today’s post is my own original work.  If you like my art, please consider visiting the I-Love-Space store on RedBubble.  Shopping on RedBubble is a great way to support artists (like me) so that we can keep doing what we do.  Thank you!

Living with a Star

~ J.S. Pailly ~ 6 Comments

Hello, friends!

I love space, you love space—lots and lots of people love space.  It’s easy to get large numbers of people hyped up about outer space!  But as soon as you start talking about funding space exploration, the mood shifts.  Folks get uncomfortable, and it turns out that space can be a controversial topic after all.  So today, I want to talk about one of the reasons (just one of the reasons) why space exploration is worth the high price tag.  It has to do with the Sun.

Earth has a complicated relationship with the Sun.  Sure, the Sun gives Earth something to orbit.  It also provides Earth with light and heat and generally makes this planet livable.  However, the Sun also throws spectacular temper tantrums, flinging all sorts of high energy radiation and electrically charged particles out into space.  Sometimes, when the Sun throws a temper tantrum, it flings all those charged particles and all that super scary radiation directly at Earth.

Fortunately, Earth’s magnetic field protects us, deflecting the danger away or redirecting it toward Earth’s poles (this is what causes auroras).  And so, for the vast majority of human history, the Sun could throw all the temper tantrums she liked, and we haven’t had to worry about it much down here on the ground.  That changed on September 1st, 1859.

On that day, English astronomer Richard Carrington was studying sunspots on the Sun (using the proper safety filters on his telescope, I presume) when he observed an absolutely stupendous flash of light.  Most likely, Carrington witnessed what we now call a coronal mass ejection, or C.M.E.  Seventeen hours later, that C.M.E. hit Earth.  It’s said that the resulting auroras stretched from the poles to the tropics and were bright enough to turn night into day.  I’ve read some versions of this story that claim auroras were even visible at Earth’s equator.

The Carrington Event, as we now call it, in Richard Carrington’s honor, must have been a beautiful sight.  However, this was also the first time a C.M.E. of that magnitude hit Earth while Earth was wired up with telegraph lines.  As Earth’s magnetic field reacted to the impact of the C.M.E., induced electric currents wreaked havoc up and down the world’s telegraph network.  Telegraph operators received electric shocks.  Telegraph equipment started shooting sparks.  In some instances, those sparks started fires.

The world today is even more wired up with technology than it was in 1859, so how bad would it be if something like the Carrington Event happened again?  No one really knows, but the Sun doesn’t need to produce another Carrington Event to mess with our technology.  Much weaker solar events have damaged or disabled our satellites in orbit, triggered power outages here on the ground, and caused radio communications blackouts.  Solar storms pose radiation hazards for astronauts, obviously, but they can also put the passengers and crew of aircraft at risk, especially if those aircraft are flying anywhere near Earth’s north or south poles.  Solar storms are enough of a problem that insurance companies are paying attention, and they get nervous whenever the Sun stars acting up (see the “want to learn more?” section below if you want to learn more).

So in the early 2000’s, NASA created the Living With a Star program, or L.W.S.  Because, for better or worse, the Sun is right there, and we have to live with it.  As of this writing, there are three active L.W.S. missions in space, plus a few other solar science missions that operate outside the L.W.S. program.  They’re all monitoring the Sun, gathering new data about solar physics, doing their best to give us a least a little warning whenever the Sun decides to hurl a giant, radioactive fireball our way.  In time, perhaps these missions will teach us why the Sun’s temper tantrums happen in the first place, so that we can better predict when they’ll happen next.

I heard something on a podcast recently: there is a difference between knowing the cost of a thing and understanding the value of that thing.  Space exploration costs an enormous amount of money.  There’s no denying that.  But for a society like ours, on an increasingly technological world like ours, the value of something like the International Living With a Star program far exceeds the cost.  This is just one example of why space exploration is worthwhile, despite the high price tag, and in upcoming posts I’m planning to offer other examples, too.

Thank you for reading, friends.  I hope to talk to you again soon.

WANT TO LEARN MORE?

Click here to read “The Carrington Event: History’s greatest solar storm” from Space.com

Click here to visit NASA’s website for the Living With a Star Program.

I mentioned that solar storms can make insurance companies nervous.  Click here for an article on how much money the insurance industry could potentially lose due to an “extreme space weather event.”

And lastly, here’s a link to the podcast I mentioned near the end of my post.  The podcast is called Stories from Space, and the episode is titled “WTF is Happening at NASA?”

The art used in today’s post is my own original work.  If you like my art, please consider visiting the I-Love-Space store on RedBubble.  Shopping on RedBubble is a great way to support artists (like me) so that we can keep doing what we do.  Thank you!