NEO Earth Close Approaches
 

Close Approach Data!

https://cneos.jpl.nasa.gov/ca/

https://www.jpl.nasa.gov/asteroidwatch/


When it comes to a "dangerously close" object that is likely to hit the earth in the near future, no or very little information will be given.:ping:

Sure close, but they never seem to hit the earth.


Just my luck.



Random Asteroid 2020!

Why not play the lottery then? :up:

And use up all my luck?


No thanks, saving that for the asteroid. :up:

:Kaleun_Applaud:

About a "Hypothetical event". https://www.youtube.com/watch?v=PyMkD6pUWlg&t=29s

lets not forget about the possibility of a coronal mass ejection large enough to burn off earth's atmosphere, so there's that too.

Trying to remember what a viewer got as an answer to their question.

Question:
How big must a meteor/asteroid be before it can destroy earth - smashed into billions of stones(Like Alderaan in S.W.)

Answer:
The meteor must have a mass of 80 % of earth mass.
A mass lower than this will not destroy earth.
(I could remember wrong though)

Markus

I;m not sure it would have to be that big, just big enough to knock Earth out of its orbit.

That would depend on what the specific question is


Destroying the earth and destroying life on earth are different. Destroying higher level lifeforms will require a smaller mass than destroying lower lifeforms*


*For the purpose of this post, politicians are not considered lower life forms. Just go with me on this.

Politicians....more akin to pond life mostly :03:

Here Platapus, look if ya can find any luck of random NEO https://en.wikipedia.org/wiki/List_o..._Earth_in_2020

https://theskylive.com/2020cx1-info :)

This being a '',submersibles" oriented forum!
 

Even if we were to get hit by a rogue planet, if it had a greater gravitational pull or was larger, it would be very likely that we won't collide with the planet but rather we would get "Spaghettified" by its intense gravitational pull. So we would get stretched until we are shaped like an egg and then Earth will give way and it will just explode. The same thing can happen with a black hole. Theoretically, though, we can pass through the black hole unharmed because of the "worm-hole" theory that black holes are a passageway into other places of space. Something with Einstein's theory of relativity.

Though we wouldn't survive for long because we would freeze to death, lol.

What a charmer! :o

I'm pretty sure a planet with that much mass cannot exist according to the laws of physics.

Scientists estimate that several dozen asteroids in the 6–12 m (20–39 ft) size range fly by Earth at a distance closer than the moon each year, but only a fraction of these are actually detected, which means having some form of "control" over what they are in principle impossible.

https://en.wikipedia.org/wiki/Astero...id_Capture.jpg

I had an app called 'Asteroid Alert' and there was more than just a few alerts of objects flying closer than the moon is to earth. First time it alerted my eyes got real big, I was like "damn that's close!" :o

You said "you had", does that mean it no longer exists, you have a link? ... Such a small sweet app could give a little excitement ... as the rest of life gives. Especially then with regard to what you experienced yourself. :yeah:

Osiris-Rex: Nasa asteroid probe ready to return to Earth after leak