NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS ...

The space object, which was only recently discovered by scientists, will pass closest to Earth on Friday, December 19. Here's ...

On Dec. 18, 1999, NASA launched its flagship Terra satellite into Earth's orbit to collect data about Earth's changing ...

Comet 3I/ATLAS, the third interstellar object ever detected, will swing closest to Earth overnight from Thursday to Friday ...

Watch a prototype of NASA's Volatiles Investigating Polar Exploration Rover, (VIPER) roll down a ramp to simulate its ...

Comet 3I/ATLAS is the third known interstellar comet after 2017's 1I/'Oumuamua and 2019's 2I/Borisov. It was discovered on ...

Interstellar comet 3I/ATLAS will make its closest approach to Earth early on Friday, Dec. 19. While it won't come close ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

The interstellar comet 3I/ATLAS is just days away from coming as close to Earth as it will ever get. Here's how you can track ...

The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will in a matter of days come as close to our planet ...

A new NASA study of data from its old Cassini mission to Saturn suggests that giant moon Titan may not have a global ocean — ...

Flying edge-on, the satellite’s pancake shape will minimize aerodynamic drag as the DiskSats encounter thicker air below 250 ...