DaveSamsonite
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Don’t worry. This happened 4 billion years ago. Allegedly. Source: https://www.cnn.com/2024/09/05/science/ganymede-asteroid-impact/
Edit: I upvote all comments, by the way.
dasAchteck
DiedAndHauntingImgur
Well he IS a rocket scientist
Sheldonian
Oh not Ganymede!
DaveSamsonite
I didn’t see that was the expanse at first. I love that show.
DiedAndHauntingImgur
The books are also great, I highly suggest both things. I recently did a read/watch
Styxwash
i'm just here for the Expanse references
LoyalToTheEnd
JackHL01
DaveSamsonite
Gesundheit
Kazeite
RIP, Ganymede's dinosaurs 🕯️
ClutterMonkey
So glad the kids and I left Ganymede.
clumsygoat
For sure, you really got to think about selling early once asteroids start gentrifying a neighbourhood.
nutmegonyourdoodle
Bastards.
DaveSamsonite
I can only imagine the first 3.9 billion years were quite rough
omgilovepizza
Deting im walowda earther propaganda!!!
DaveSamsonite
belta lowda kratom hufferda
ZeroLyfe
I'm glad that scientists finally know why Ganymede doesn't have any dinosaurs.
AndrewTheLionheart
They'll know for sure after the impact.
DaveSamsonite
People kept stealing them.
lovely creature, the Ganymedian T-Rex.
SecondSince
They also tried a container ship. It didn't work out so well...
AmyBernadettePenny
Beautiful plumage.
DaveSamsonite
The plumage don’t enter into it!
BurningVeryImportantThings
Seriously misunderstood creatures T-Rex are.
DaveSamsonite
They are kind of like pixie bob cats. You see them and those little front legs n those alarms and those little legs are cute, but then you realize the horror involved in breeding them.
DaveSamsonite
DefinitelyaHumanNotanAlien
'Poop outside litterbox, watch human clean it up'
cousteau
Oh, likely HIT, not likely TO HIT
furrnandovalenzuela
I worry about people who throw rocks
Carl99
In this case blame Jupiter itself. it's responsible for a lot of the random rocks out there having got onto their current trajectories.
KevorkianPharmaceuticalsInc
omg is ganymede ok
1eudaemonia
Jupiter is like earth best defense
NervousAstronaut
Did i miss it? Not one comment about the old man's face in the Ganymede photo?
Umkontodon
Fascinating article.
I wasn't there when the asteroid wiped the dinosaurs but they included the size in Km, so all good
OliverKlozoff1269
Op momma was there.
PrfctDrk
Oh dude, the recent media had be believing this was recent and it's axis was -recently- shifted, wtf. Four billion years ago pft
Whatwhatsomethingbutt
I absolutely thought the same thing. "Oh shit! Is this something I could see with my own eyes? Wait, that's probably a shit ton of debris now flying around - that's probably bad for us. Oh 4 billion years ago."
DaveSamsonite
I know! it was on CNN breaking news. Basically a Japanese research or just published their work represented somewhere and there are press releases for that stuff.
BoogiesOogie
So this is what endangered the Ganymede sea rats.
gumblemuntz
If VGER says it happened, it happened!
KevinStrexcorp
That's kind of why we have a Jupiter. Or said another way, why we have an us. Remember to thank your Jupiter today!
PhilKenSebban
I read the headline thinking this happened recently. But missed it by 4 million years, old news.
DaveSamsonite
Four billion
PhilKenSebban
Ah, even worse.
Default87
I hope their dinosaurs are ok.
DaveSamsonite
A few dozen survived to adulthood. Most of them are in their US senate now
jtxyz
Sure, but how many dinosaurs did that asteroid wipe out?
Probably none!
Kommadore
Not one comment here about Ganymede lobsters or Bebop at all. I'm disappointed
JanglesPrime
Also, no one commented on Europe calling their spacecraft "Juice."
DaveSamsonite
Red Lobster offered two small Ganymede lobsters for additional $10 with your entrée, but they were really just butterflied surimi prawns. When they got caught, they tried to claim they were preserving the species and they were given a reward for this by PETA
DaveSamsonite
Those lobsters would make a dynamite club sandwich
PubstarHero
I came here looking for a comment about Bebop. Im glad at least some people are cultured here.
SyntheticReindeer
So around the time when a smaller planet smashed into earth.
Late heavy bombardment (3,8-4,1 GA)
DaveSamsonite
We wouldn’t have a moon if it wasn’t for that. Apparently, the angle that it hit and the conditions had to be very specific so we got lucky. Otherwise, the ocean would be flat.
HzZbVYAx77aoiuN9Zy
the ocean is flat, since it is on earth and the whole earth is also flat!
DaveSamsonite
downvoteifyouhatekittens
Good work Jupiter
FellaWithUmbrella
4 billion years ago? So it couldn’t hit the earth, because it’s just about 6000 years old. /s
DaveSamsonite
The earth did not exist yet in its true planar form, with the sun rotating around it.
YuffieK
4 billion years ago the Solar System was a F'N DEMOLITION DERBY
Tellenue
There is a reason we have a period known as the Late Heavy Bombardment, because rocks were just smashing into each other constantly on a cosmic time scale. Like, counting the time between hits in mere thousands of years at some points.
NotACanadian
Glowing hot rocks smashing into other glowing hot rocks, making those rocks hotter and glowier
neospor1n
And bigger (or smaller depending on gravitational forces)
Sheldonian
I like this description
CarpeDeezNutz
Uranus knocked on it's side, Venus rotates in reverse, Mercury had it's entire mantle blown off, Mars's northern hemisphere flattened...Solar System's a trauma center
CarpeDeezNutz
*its
Sensiblyinteresting
Our civilization likely only exists because earth collided with another planet giving us a way larger core and amazing magnetic field
Whatwhatsomethingbutt
Thanks Obama...
DestinyPrevails
Furthermore, the remnants of the planet (Called Theia) were blasted into space and coalesced to form the moon. The moon gives us our tides and also soaked up a large number of asteroid hits that could otherwise have hit Earth. So both our magnetic field, the tides, and some protection against asteroids, all due to a collision with Theia in the early solarsystem.
Sensiblyinteresting
What is insane is because of this we have an abnormally large moon in relation to the size of our planet which just happens to be 400x smaller in diameter while also being almost exactly 400x further away which means we are likely one of few planets in the galaxy that have full solar eclipses. Incredible how much that along with the tides has shaped us as a people
DaveSamsonite
Interesting tidbit: Ganymede is a massive moon. It has a larger diameter than Mars and Pluto. Largest moon in the entire solar system.
XanderCorsaj
I love all this
SecondSince
For now. With the moon drifting away from Earth a tiny bit it's a matter of time until we no longer have full eclipses. ;)
MenloPart
The moon is also shrinking.
Sensiblyinteresting
The earth also is moving away from the sun at a similar rate which is pretty odd so it is negating about 70% of the size/distance disparity change. It's pretty cool that eclipses lines up perfect for humanity though. Dinosaurs likely didn't get to see full solar eclipses lol
cryborg
Jupiter Icy Moons Explorer should be Juicy ME. I'll fight.
clcman
I'm just as mad that NASA's new Europa probe is called the "Europa Clipper." "Cadmus" is RIGHT THERE!
DaveSamsonite
D’jooo see me now?
Detoc
As a Ganymedian, I object to your click-baiting sensationalistic titling. It cause me unnecessary panic.
Whatwhatsomethingbutt
Talk about sensational click-bait. A news headline popped up on my phone yesterday that said "asteroid likely to hit earth" and of course I opened it because WTF... The article said it's very small, will likely hit the ocean, and isn't a threat to anyone.
DaveSamsonite
Detoc
Tch tch....shameless earthling.
JackieTreehornProductions
Lets just hope it catches the next one too.
DaveSamsonite
You might say that the human race is run.
BixbyConsequence
Jupiter has been doing a good job for us too.
JackieTreehornProductions
It's pretty well established if we didn't have Jupiter and Saturn where they are we wouldn't be here several times over. Big gravity saves lives. https://www.freeastroscience.com/2024/01/guarding-earth-how-jupiter-and-saturn.html
rbudrick
20x larger in diameter or mass? These articles are often unclear on this.
DaveSamsonite
The estimates often made assuming density is that of a rocky asteroid.
rbudrick
They are also often made in terms of diameter. Science "news" is weird.
DaveSamsonite
Well, for events that happened either66 million or 4 billion years, almost everything needs to be approximated.
DaveSamsonite
This is the nature of science. Somebody does research and has a theory. They publish their theory and there’s vigorous scientific debate about its validity. More study is made and more scientists get involved. The picture gets more accurate over time. And no way does this call science itself into question. My problem with his original article was that they make it sound like it just happened. That’s why I clicked in the first place. And it’s why my first note in the first picture clarifies that
rbudrick
I guess, but when using multiples of diameter, the mass goes up by a lot more than the multiple, making estimates not useful any more.