While many dubbed it the "Halloween comet," the cosmic snowball of ice and dust more officially known as C/2024 S1 (ATLAS), disintegrated on Oct. 28 as it approached the sun. The comet's final ...

Unlike asteroids, which are entirely made of rock, comets are made up of ice, rock, and gas. As they approach the Sun, the warmth causes the ice to change into gases and releases dust particles ...

Just when we thought we were starting to understand the mysterious object 29P/Schwassmann-Wachmann, it has confounded us ...

This comet is going to make for some really cool images as it gets ... As a comet gets closer to the sun, it heats up slightly. That causes the ice covering its nucleus to become a gas, creating ...

Tuesday marks the tenth anniversary of a huge astronomical milestone: the first and only time we have landed on a comet. The ...

A comet is made from ice and dust. As it gets closer to the sun, it heats up slightly. That causes the ice covering its nucleus to become a gas, creating a coma. This gas — and dust — from the ...