this post was submitted on 19 Feb 2025
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Odds of asteroid YR4 hitting Earth just went up again, reaching new high (globalnews.ca)
submitted 3 days ago by [email protected] to c/space
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[โ€“] AngryCommieKender 2 points 3 days ago* (last edited 3 days ago) (1 children)

It's currently moving at about 12,000 kph and will be slightly sped up to 17,000 kph if it actually hits us. That is not a significant enough portion of C to be anything but a city killer. This thing isn't even a Tsar Bomba in terms of energy output. More like a Mark 17.

[โ€“] Jarix 2 points 3 days ago (1 children)

https://lemmy.world/comment/15180729

Regrub just said can we make it go faster, so i guess it would need to be increased much much more than 17,000 kph, which seems slow for galactic/cosmic speeds.

Wonder how much more energy it would need.

Someone get Randal Monroe on this stat!

Lol

[โ€“] [email protected] 1 points 3 days ago

I think you'd need to nearly double the velocity for it to be remotely close. I think I saw something like 30-40k km/h before it's at that level