Sigourney Weaver recently revealed the key advice she gives younger actors. Before sharing that advice, she said, ‘I'm ...

It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...

Tiny bits of Earth’s atmosphere have been drifting to the moon for billions of years, guided by Earth’s magnetic field.

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...