Planetary collisions influence the future of a planet and the formation of its atmosphere. Credit: NASA
Cosmic collisions shape the atmosphere of planets - science news articles with summaries

Why are rocky planets around the universe so diverse when it comes to their atmosphere? Astronomers came up with an answer by simulating a variety of cosmic impacts.

In a new study, they showed that giant collisions between planets and other objects such as meteorites are very efficient at reducing or even removing the atmosphere of a planet. Depending on the outcome, an impact with a rock object can create different types of worlds.

Such impacts are part of the formation of a planetary system. Earth got its moon following one such monstrous collision. Therefore, collisions can create a wide variety of exoplanets and their results depend on the age of the planet and the speed and mass of the colliding object.

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Scientific publication: arXiv