Our solar system's famous "invader" might be as old as the Milky Way itself.

Despite competition from box-office-crushing hobbits, X-Men, and Autobots, Christopher Nolan’s Interstellar landed as one of 2014’s big theatrical hits. But its ultimate legacy wasn’t clear at the ...

The interstellar comet 3I/ATLAS was confirmed in July 2025 as the third known object to visit our solar system from interstellar space. Despite conspiracy theories, scientists say 3I/ATLAS shows all ...

A newly released image from the European Space Agency’s Jupiter Icy Moons Explorer (Juice) has offered a detailed look at interstellar comet 3I/ATLAS, showing the object actively releasing dust and ...

In late 2025 a mysterious comet flew between the orbits of Earth and Mars and reached a speed of more than 150,000 miles per hour during its closest approach to the sun. The rare interstellar guest to ...

The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...

The Alpha Centauri star system is just 4.2465 light-years away – a relative hop, skip, and a jump in a galaxy 100,000 light-years across. Wouldn't it be great to visit? Not just with a fleet of puny ...

Interstellar dust extinction as a research area investigates the wavelength-dependent attenuation of starlight and other electromagnetic radiation by dust grains in the interstellar medium, with ...