A collision is an isolated event in which two or more moving bodies (colliding bodies) exert forces on each other for a relatively short time. Although the most common colloquial use of the word "collision" refers to accidents in which two or more objects collide, the scientific use of the word "collision" implies nothing about the magnitude of the forces. Some examples of physical interactions that scientists would consider collisions: An insect touches its antenna to the leaf of a plant.
All stories in Collision
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Ultraviolet light gives astronomers new clues on mysterious stellar eruptions
White dwarfs explode under certain conditions, but the causes of these events remain a mysterious process. However, ...
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Burst of gamma rays from 10 billion light years away offers glimpse into the early universe
A short gamma ray burst known to astronomers as SGRB181123B is the second most-distant well-established SGRB ever seen, ...
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Astronomers believed this mysterious exoplanet was totally out there — until it wasn’t
Astronomers have solved the riddle of a disappeared exoplanet— finding in its place a massive dust cloud from a cosmic ...
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This AI-powered port in Japan prevents ship collisions better than humans
Computer manufacturer Fujitsu and the Japan Coast Guard have successfully proven the effectiveness of AI in preventing collisions ...
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[Best of 2019] NASA head warns: Expect a major asteroid impact in your lifetime
NASA administrator Jim Bridenstine thinks it’s time to start taking the threat of an Earth-altering asteroid impact seriously. ...
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Spoiler alert: Here's how The Milky Way dies
Our neighboring galaxy, Andromeda, is a cold-blooded killer and a cannibal to boot. In about 4 billion years it's going to ...
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How life on Earth was boosted by an asteroid collision 446m years ago
Something mysterious happened nearly half a billion years ago that triggered one of the most important changes in the history ...
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Here's how we can change the Earth's orbit to escape the expanding sun
In the Chinese science fiction film The Wandering Earth, recently released on Netflix, humanity attempts to change the Earth’s ...
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Uber's off the hook for its self-driving car's fatal accident — but what about human drivers?
Uber is no longer being blamed for the fatal accident its self-driving test car caused - but the human driver behind the ...
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NASA sends spacecraft to meet asteroid on collision-course with Earth
NASA’s spacecraft OSIRIS-REx has finally reached the asteroid 101955 Bennu – which may be on collision course with the ...
