Impact Craters
Impact craters are circular depressions on the surface of a planet, moon, or other solid body in space that are formed when a smaller object, such as a meteoroid or asteroid, collides with the surface at high velocity. The impact of the smaller object creates a shock wave that travels through the solid body, causing the material to be compressed and heated, and then rebound and eject from the impact site. The resulting crater can range in size from a few meters to hundreds of kilometers in diameter, depending on the size and velocity of the impacting object, as well as the properties of the target material. Impact craters are important features for understanding the geological history of a planet or moon, as they can provide information about the age and composition of the surface material, as well as the frequency and intensity of impact events over time.
Your Previous Searches
Random Picks
- Atmospheric Contamination: Atmospheric contamination refers to the presence of harmful substances in the Earth's atmosphere, which can have negative impacts on human health, the environment, and space missions. Sources of atmospheric contamination include natural eve ... Read More >>
- Cryptographic Algorithm: A cryptographic algorithm is a mathematical function used to encrypt and decrypt data. It is a set of rules or procedures that transform plaintext into ciphertext and vice versa. Cryptographic algorithms are designed to provide confidential ... Read More >>
- Particle Beams: Particle beams refer to streams of charged or neutral particles that are accelerated to high velocities and used for a variety of purposes in space and astronautical engineering. These beams can be generated by a range of devices, including ... Read More >>
Top News
Bestselling author explains the science of happiness: "You can do the work"...
Bestselling author and Harvard professor Arthur Brooks opens up about how enjoyment, satisfaction and meaning in life can increase a person's wellbeing....
News Source: CBS News on 2024-11-18
November's full moon, known as the Beaver Moon, is the last supermoon of 2024. H...
November's full moon, known as the Beaver Moon, is the last supermoon of 2024. Here's when it peaks and why it's called the Beaver Moon....
News Source: CBS News on 2024-11-15
You can't put a price on the sense of awe particle physics inspires...
Astronomy and particle physics are no longer seen as vital by the US establishment, so funding has fallen. But our work creates a sense of wonder, and wonder matters, says Chanda Prescod-Weinstein...
News Source: New Scientist on 2024-11-13
If you want to stretch your gift game into days this holiday, check out these ad...
The advent calendar phenomenon is growing every year, with so many exciting, fun, beautiful, and delicious options available...
News Source: ABC News on 2024-11-04
November brings a bonanza of meteor showers...
November brings a skywatching bonanza, with three meteor showers — the Southern Taurids, Northern Taurids and Orionids — offering chances to see shooting stars....
News Source: NBC News on 2024-11-02