An interstellar comet changed its chemistry after passing the Sun, revealing hidden layers and a surprising mix of carbon ...

Usually, comets are dormant blocks of rock and ice. They only wake up when they get close to a star. The intense heat causes ...

Starlight has been the key to finding thousands of exoplanets over the past decade, but researchers have found a new way to ...

A comet named 3I/ATLAS was first discovered on July 1, 2025, and is located about 420 million miles away from Earth, ...

A new comet should be visible to the naked eye this week, but you're going to need to set an alarm to see it.

A mysterious visitor from another star system is carrying secrets billions of years old. Its composition could reveal how ...

A team of astronomers from the European Space Agency have found that a huge interstellar object in space is ejecting water ...

The interstellar comet 3I/Atlas began outgassing methane from its interior after being warmed up by the Sun. The material is ...

The interstellar comet 3I/ATLAS releases water equivalent to 70 Olympic pools daily, providing insights into ancient ...

The frequency of fireballs in our planet’s skies seemed to grow in recent months. NASA and other meteor experts can’t agree ...