0
votes
0answers
79 views

How fast do large asteroids usually travel?

I have just watched this video made by discovery channel, and you can hear the narrator at 0:51 saying that : "even though it is moving at 720 THOUSANDS kilometers per hour..." I stopped once I heard ...
2
votes
2answers
69 views

What information about a meteor's trajectory, size, or height can be derived from a single location?

If one sees a meteor, is there any way to get even a rough approximation of its height, entry angle, size, or other characteristic without triangulation from another position? If it appeared as a ...
7
votes
4answers
3k views

Comet versus asteroids versus meteors

What are the differences between Comet versus asteroids versus meteors in practical terms?
2
votes
1answer
12 views

Are there trends in the number of meteors in a shower year on year?

Some years the Leonids are amazing, other years there are very few - are these predictable at all, following trends or at least reasonably accurate predictions?
7
votes
3answers
81 views

Are there any Earth-Meteorites on Earth?

A follow-on from this question, if meteorites can come from Mars, it seems they could have come from Earth and ended up back here (though I'm guessing that to be less likely). Do we have any evidence ...
6
votes
2answers
553 views

Are meteorites igneous, sedimentary or metamorphic rocks?

Are meteorites igneous, sedimentary or metamorphic rocks? Or do we need a new method of rock classification for them?
2
votes
2answers
214 views

Why can't you see meteors, but you can see comets from the moon?

Why can't you see meteors from the moon and why can you see comets?
10
votes
4answers
95 views

What's the best way to watch meteor showers?

I have read somewhere that the best/easiest way to watch meteor showers is to lie on the ground or other horizontal surface with your feet oriented towards the "apparent point of origin" (what was ...
12
votes
3answers
72 views

Which is the strongest meteor shower expected in the next years in the Northern hemisphere?

Which is the strongest meteor shower expected in the next years in the Northern hemisphere? Is it possible to give good predictions for this?