Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

Every time a rocket is launched, tons of valuable materials are lost, and huge amounts of greenhouse gases and ...

For decades, humanity has sought answers to one of the most profound questions in science: are we alone in the universe? The ...

It’s a critical time for companies competing to develop a commercial successor to the International Space Station. NASA is ...

Interstellar comet 3I/ATLAS, the third confirmed visitor, reveals shocking data: high nickel content and unique cryovolcanism ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

Elon Musk shares plans for solar-powered AI satellites in orbit, touts Tesla as world leader and targets Optimus scale ...

The picture-perfect launch of twin Escapade orbiters bound for Mars presages a fantastical new age in exploring the planets, ...