this post was submitted on 09 Dec 2024
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[–] ThatWeirdGuy1001 97 points 1 week ago (5 children)

Should've been Jupiter instead of the moon. Since Jupiter protects the inner solar system from most asteroids and comets.

[–] lath 44 points 1 week ago (2 children)

Nah. Jupiter would be like "Yummy! Moar!!!"

[–] expatriado 26 points 1 week ago

agree, would make more sense a comet asking Neptune for directions, and then colliding with Jupiter with Pac-Man face

[–] [email protected] 2 points 1 week ago* (last edited 1 week ago)

It's way more complicated than that:

https://www.youtube.com/watch?v=1zu41rrc_Ng

The way the complicated orbital mechanics work, there is a "gate" which is the only place where asteroids/comets/whatever can cross Jupiter's orbit. This doesn't usually result in them hitting Jupiter, but it does limit their options for hitting Earth.

Been a while since I watched the video, so I don't remember all the details, but that should be the basic gist.

[–] [email protected] 21 points 1 week ago (3 children)

Here's a <1pg read about Jupiter and comets.

Jupiter’s gravity is thought to sling most of these fast-moving ice balls out of the solar system before they can get close to Earth... Without Jupiter nearby, long-period comets would collide with our planet much more frequently.

Consider that its powerful gravity prevented space rocks orbiting near it from coalescing into a planet, and that’s why our solar system today has an asteroid belt, consisting of hundreds of thousands of small flying chunks of debris. Today, Jupiter’s gravity continues to affect the asteroids – only now it nudges some asteroids toward the sun, where they have the possibility of colliding with Earth.

Editorial: It's a double-edged sword that favors us far more often than it doesn't. The human problem is that it only takes one collision to end us.

[–] Tyfud 11 points 1 week ago (2 children)

To clarify, we likely wouldn't end as a species.

Dinosaurs were ended with a roughly 10-15km meteroirite hitting earth, and causing months of distortions and damage to the ecosystem that disrupted their way of life enough that they starved or died of other causes.

They were not nearly as adaptable as we are in modern times.

To be sure, a lot of progress would die, and life would be greatly disrupted, but we, as a species, would almost certainly survive a similar event.

[–] [email protected] 8 points 1 week ago* (last edited 1 week ago) (1 children)

If we humans did not chronically overestimate self and underestimate risk then we'd all choose to kill ourselves. Individuals can be smart. But, when pressured or at scale we're really fucking stupid.

causing months of distortions and damage

It wasn't months. It was centuries of upheaval before systems restabilized, double digit human generations.

Sure, the meteror's impact wouldn't kill all of humanity. The subsequent choices of the few that remained almost certainly would. We're fragile, ordinary creatures that just got here and immediately set about killing one another and the planet itself.

[–] Tyfud 2 points 1 week ago (1 children)

That is certainly one way it could go.

[–] [email protected] 1 points 1 week ago

Sir, the possibility of successfully navigating an asteroid field is approximately three thousand seven hundred and twenty to one!

Never tell me the odds.

A very human response.

[–] [email protected] 1 points 1 week ago

The Deccan Traps probably didn't help either.

Oh, by the way, didn't the Phlegraean Fields start acting up recently..?

[–] ThatWeirdGuy1001 6 points 1 week ago (1 children)

I mean it's a mathematical inevitability that earth will get hit eventually. Having Jupiter there just gave us better odds. Luck doesn't last forever though.

[–] [email protected] 6 points 1 week ago (1 children)

I think the odds are better that we kill ourselves before a comet does it for us ;)

[–] ThatWeirdGuy1001 3 points 1 week ago (1 children)

Oh I've felt that way for decades. Humanity is never escaping this rock.

[–] [email protected] 2 points 1 week ago

All we need to do is make sure we keep talking.

[–] [email protected] 2 points 1 week ago (1 children)

Just as his namesake god, sometimes benevolent, sometimes an asshole. Though slightly less of an asshole, it seems

[–] [email protected] 2 points 1 week ago (1 children)

I see what you mean. But, take out the word "slightly" and it's also how most of us perceive ourselves and how we should be treated by an authority. It seems exemplified in our anthropomorphized perceptions of most gods.

[–] [email protected] 2 points 1 week ago

Yeah, polytheistic gods are basically people, with all consequences thereof. Powerful, but not omnipotent, nor omniscient.

We've been telling stories of those people to make sense of the universe, but the story is ultimately about us.

[–] Klear 2 points 1 week ago

Jupiter is "the big one".

[–] [email protected] 2 points 1 week ago

In the bando of the Solar System, Jupiter is the pitbull