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Questions tagged [crater]

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13
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1answer
122 views

How would the Tycho Impact have appeared from Earth?

The Tycho crater is thought to be the youngest major impact on the Moon, estimated at 108 million years ago. This puts it firmly in the reign of the dinosaurs, I find myself curious as to what our ...
5
votes
0answers
59 views

Is the Ordovician meteor event detectable in the lunar cratering record?

Approximately 468 million years ago there were a large number of L-chondrite meteorites falling to Earth. This is called the Ordovician meteor event and was probably the result of a large collision in ...
3
votes
2answers
99 views

What are the craters on the moon with peaks in the middle of them?

Was taking some extremely amatuer pictures of the moon from my cheap telescope with my camera phone... You see the crater Im talking about? Top right.The one with a little nub in the middle- which Im ...
5
votes
1answer
116 views

Where do asteroids impact upon the Earth most often?

Where do asteroids impact upon the Earth most often? Are impact zones primarily along the equator? Is there an average area where impacts are more likely to occur? If there is a zone, is there a ...
2
votes
1answer
4k views

If an asteroid was to collide with Earth, how much warning would we have?

I was talking to my 9-year-old son about the Florence asteroid that is passing close to the earth. He wanted to view youtube videos about that asteroids, and we saw the starting of this one https://...
4
votes
1answer
63 views

Where goes original asteroids mass after impact?

In relation to possible asteroid mining on the moon, where goes asteroid mass after the impact? Will it be burried, scathered, or evaporated?
7
votes
1answer
248 views

Strange square-like formation on Mars

Recently I've explored an area on Mars' surface which one looks like huge hatch cap & hole, about 10 kilometers, between tons of circular craters. The formation is very unique and strange to me. ...
3
votes
0answers
31 views

Any benefit for analyzing the depth of craters across the surface of a planet?

I would like to know what conclusions one could draw from mathematically analyzing the depth of various craters across the surface of a given planet, and then relating that to their position on said ...
1
vote
1answer
295 views

How do we get the angular size of a crater without lens?

Suppose I want to calculate the diameter of the crater. I apply the small angle formula $$diameter=\frac{\theta_{diameter}}{206265''}\times D$$ where $\theta_{diameter}$ is the angular size of the ...
4
votes
1answer
495 views

How big can a crater get?

What is the biggest possible crater from an asteroid impact? Not asking for the biggest existing crater in the solar system. I should be able to find plenty of lists online. What I'm curious about is ...
4
votes
2answers
258 views

What explains the distribution of new impact craters on Mars?

24 minutes into this van Karman lecture by Dr. Tamppari, the slide below is shown with symbols for transient events on Mars. Red dots represent meteoroid impacts which have occurred while MRO has been ...
0
votes
3answers
101 views

Celestial impacts

Have we ever observed, or better yet, recorded, an impact from a comet/meteorite/fragment/etc on another celestial body? For example, in all its time orbiting Mars, has the MRO observed anything ...
2
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1answer
123 views

Age of Occator Crater

Has any official information been published regarding the estimated age of the Occator crater on Ceres? I ran some quick searches but couldn't find anything putting a definitive (or even speculative) ...
3
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1answer
2k views

How to tell a crater is old or not?

Based on Wikipedia, we can estimate the age of a planet's surface. How to tell a particular crater is newly formed or not? It may have sharp edge. Different astronomical objects may have different ...