Recent comments in /f/space
7sv3n7 t1_j978p2g wrote
Reply to comment by Consistent-Sweet-119 in Where does the asteroid belt belong? by Consistent-Sweet-119
Found a few, worth reading more into it if ur interested. I googled inner solar system vs outer
northaviator t1_j978d89 wrote
Reply to comment by Advanced_Double_42 in Terraforming a magnetosphere possible? by Pornelius_McSucc
It would be far easier to get your H2 at An Ice giant.
Consistent-Sweet-119 OP t1_j9783iq wrote
Reply to comment by A_Sane_Human_Being in Where does the asteroid belt belong? by Consistent-Sweet-119
Thank you! 😊
northaviator t1_j9782ch wrote
Reply to comment by 3d_blunder in Terraforming a magnetosphere possible? by Pornelius_McSucc
Venus turns to lava regularly, on a geologic time scale. It's why there aren't many craters on Venus.
Consistent-Sweet-119 OP t1_j97827a wrote
Reply to comment by 7sv3n7 in Where does the asteroid belt belong? by Consistent-Sweet-119
I only found this one result on google that mentioned this. Hence why I thought I’d ask here. Thanks 😊
[deleted] t1_j977o2u wrote
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7sv3n7 t1_j977191 wrote
The inner Solar System includes the four terrestrial planets and the asteroid belt. The outer Solar System is beyond the asteroids, including the four giant planets. Since the discovery of the Kuiper belt, the outermost parts of the Solar System are considered a distinct region consisting of the objects beyond Neptune.
From Google not my words but hope it helps
A_Sane_Human_Being t1_j976tj0 wrote
There is no “Inner” and “Outer” solar system with a hard defined boundary. Generally the solar system is divided into the rocky planets (which ends at Mars), the gas giants (which starts at Jupiter), and the Kuiper Belt (which is all of the objects beyond the orbit of Neptune).
So you would just say the asteroid belt is the region of space between the rocky planets and the gas giants, or between Mars and Jupiter. There is no real agreement in what the “inner” and “outer” solar system is or if they are even fair classifications. Especially now that the Kuiper Belt is so frequently referred to as the outer solar system by laymen.
rocketsocks t1_j976b13 wrote
Reply to comment by Itis_TheStranger in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Erosion, water and the atmosphere. The atmosphere protects the surface from some impacts, causing a larger number of small sized impactors to blow up in the air before reaching the surface and forming a crater. A similar effect happens with smaller impactors that hit the ocean and aren't large enough to make a crater in the ocean floor. The big factor though is erosion and plate tectonics. If you look at the surface of Mars most of that crust is ancient, billions of years old. On Earth the crust gets recycled constantly due to tectonics and volcanism. The big island of Hawai'i is a fraction of a million years old, for example, and the ocean floor keeps getting recycled in a process that keeps most of it under 150 million years old.
Then you have erosional processes due to the air, the water cycle, life, etc. Mountains get worn down, surface features get changed by rivers and shorelines, rocks get changed and moved around, life covers up or erodes surface features, etc. There's a huge crater in the Yucatan peninsula from the impactor that ended the reign of the dinosaurs 66 million years ago, but it's not easily visible to the naked eye because of all the erosional processes that have occurred since then. Remnants of older craters have been found but they are also not easily visible because of erosion. Smaller craters have a tendency to get completely erased by geological activity and erosion.
[deleted] t1_j973jis wrote
Reply to comment by Snipexx51 in Are we living inside a black hole? by Lilweedoholic
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Kitten_Team_Six t1_j972o5l wrote
Reply to This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
I always wished i could get a good look at Uranus
Reglarn t1_j971yp1 wrote
Reply to comment by Present_Reason2097 in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
You can also see this easy in crater lakes like the huge one in Canada with a huge island in middle
[deleted] t1_j971t95 wrote
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kerfitten1234 t1_j970pm4 wrote
Reply to comment by [deleted] in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Lol, your source is an opinion piece meant for kids.
https://www.britannica.com/science/meteorite-crater/The-impact-cratering-process
>Earth’s atmosphere certainly slows and prevents typical asteroidal fragments up to a few tens of metres across from reaching the surface and forming a true hypervelocity impact crater, but kilometre-scale objects of the kind that created the smallest telescopically visible craters on the Moon are not significantly slowed by Earth’s atmosphere...
The atmosphere shielding the surface is not the reason for that lack of craters on earth.
MassProductionRagnar t1_j970kfe wrote
Reply to comment by UndendingGloom in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Desert just means dry. All of it is frozen though.
[deleted] t1_j96z3xq wrote
ArmChairAnalyst86 t1_j96yl9j wrote
Reply to comment by MonsterRideOp in Sun unleashes massive X2-class solar flare during geomagnetic storm watch (video) by Realistic-Plant3957
I agree overall. X Class flares of this variety occur fairly frequently. There's a bit too much sensationalism about these flares. That said, a direct hit from even a lower X class flare could have implications for earth and satellites but likely minor in nature.
In 89' an X15 and resulting CME hit earth. Aurora made it south as Texas and Quebec lost their grid for several hours. Communications were affected worldwide. It was still just a love tap, despite being a moderately strong storm. I understand that there are several factors that influence the magnitude of resulting geomagnetic storms but the 89 event does provide a decent frame of reference for strength of flare and resulting storm/effects on earth.
Zealousideal-Bet-950 t1_j96x5fo wrote
Reply to comment by UndendingGloom in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Its my understanding that the frozen stuff sublimates into the atmosphere without spending much time sloshing around...
CrimsonWolfSage t1_j96we2r wrote
Reply to Fake memory about Halley's comet? by csarnoella
1986 was the last Halleys comet, and it won't be back until 2061. So, while this is a very popular name thrown around. Most younger adults have never even seen it!
Might see if these help ring a bell for you
- 1997 - hale-bopp
- 1996 - comet Hyakutake
- 1994 - Shoemaker (struck Jupiter - too old here)
kerfitten1234 t1_j96w8e9 wrote
Reply to comment by UndendingGloom in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Mars is a cold desert, like Antarctica. Also mars' atmosphere is too thin to allow water to exist in liquid form on the surface, except in special circumstances.
kerfitten1234 t1_j96vsvt wrote
Reply to comment by Itis_TheStranger in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
FYI readditman is wrong. See my reply to their comment.
csarnoella OP t1_j96vrnm wrote
Reply to comment by gusaaaaa in Fake memory about Halley's comet? by csarnoella
I believe so, u/syentifiq was super fast at responding! Thank you, I'm so excited, this is almost definitely the one!
kerfitten1234 t1_j96viy6 wrote
Reply to comment by [deleted] in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
No, it's because of erosion and the fact that earth is tectonically active. Any meteor large enough to leave a decent crater isn't going to be stopped by an atmosphere.
space-ModTeam t1_j979kxr wrote
Reply to Where does the asteroid belt belong? by Consistent-Sweet-119
Hello u/Consistent-Sweet-119, your submission "Where does the asteroid belt belong?" has been removed from r/space because:
Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.