Questions tagged [crater]

Questions about a depression on the surface of solid celestrial ojects, use also when asking about maar or caldera.

Filter by
Sorted by
Tagged with
2
votes
1answer
65 views

Ice filled craters on Mars

How many craters on Mars have ice in them and which ones have permanent ice? I could only find Korolev and the unnamed one - strange for such a remarkable crater. http://www.esa.int/...
3
votes
0answers
62 views

How can lunar pits be distinguished from craters?

ESA's news En route to exploring lunar caves features the following paragraph: The Moon's surface is covered by millions of craters, but it also hosts hundreds of very steep-walled holes known as ...
1
vote
1answer
45 views

Elongated Moon crater statistics?

Many craters on Moon have circular shape as a result of the explosion upon impact. I got interested in oblong craters created by impacts striking the surface at a very low angle. Is there any ...
0
votes
1answer
35 views

What is the naming convention for craters on Mercury?

The two largest craters on Mercury are names Caloris (meaning "hot") and Rembrandt (for the painter). So there doesn't seem to be a pattern. By convention, craters on Mars are named for ...
3
votes
1answer
75 views

On a lunar map, why is it labelled East on Earth, West on Moon?

source Why is east and west reversed for the moon? Why does north and south remain the same? Please explain like I'm five.
2
votes
2answers
128 views

How does one go about submitting a name for a newly-discovered lunar crater?

Suppose I discover an uncatalogued crater on the lunar surface, and decide to name it. How would I submit my proposed name to the IAU?
0
votes
0answers
38 views

How does one go about naming a lunar crater? [duplicate]

Suppose I discover an uncatalogued crater on the lunar surface, and decide to name it. How would I submit my proposed name to the IAU?
5
votes
2answers
170 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) ...
6
votes
2answers
104 views

What's the difference between a crater and a basin?

When I was searching the name of the Moon's largest crater, many websites said that it was the South Pole-Aitken Basin. But in some definitions I've found, the word "crater" is used to ...
4
votes
1answer
302 views

What caused these strange craters on Hyperion?

I was looking at pictures of the moons of Saturn and noticed that the craters on Hyperion have a strange shape, somewhat resembling sinkholes. They look a lot deeper than the impact craters on other ...
9
votes
1answer
158 views

How did the Archimedes crater fill with lava?

This is the Archimedes crater, on the moon, near the Apollo 15 landing site. It is located in Mare Imbrium, a plain filled with lava. The strange thing is that the interior of the crater looks flat, ...
5
votes
1answer
403 views

Is the boulder on the peak of Tycho Crater the core of the impactor, or is it a random rock?

There's a strikingly visible boulder sitting right at the top of the peak complex in the center of Tycho Crater on the Moon. Is it just a coincidence that this gigantic, bright rock is sitting dead ...
3
votes
2answers
172 views

Age of Jezero crater on Mars

How long ago the Jezero crater was formed on Mars? And is it a meteorite impact crater?
38
votes
2answers
5k views

How do we distinguish old craters from new ones on the Moon?

The following image is the observation made by the Dual Frequency Synthetic Aperture Radar (DF-SAR) onboard the Chandrayaan-2 Orbiter: Due to image size restriction, a lower resolution image is used ...
2
votes
2answers
113 views

The dominance of Gravity vs Strength and its dependency on crater size

So I am trying to write a research paper (about 3700 words) for high school about the topic "The dominance of Gravity vs Strength and its dependency on crater size" or something similar. I have ...
5
votes
1answer
7k 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://...
19
votes
1answer
3k views

Apparent Ring of Craters on the Moon

I saw this picture on the BBC news website. There appears to be a ring of craters in the center of the picture, aligned in an approximate sub vertical orientation. Am I just seeing things or does ...
17
votes
1answer
428 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 ...
7
votes
0answers
81 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
309 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
148 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 ...
4
votes
1answer
70 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?
6
votes
1answer
648 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. ...
4
votes
1answer
3k 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 ...
2
votes
0answers
35 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
538 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 ...
6
votes
2answers
421 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 ...
4
votes
1answer
663 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 ...
0
votes
3answers
108 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 ...