Just over four light-years away, the Alpha Centauri system holds the closest worlds beyond our own that might support life.

A start-up company has permission to try its plan to bounce solar rays onto the dark side of Earth, turning night to day for ...

For the first time, scientists have used NASA's IXPE (Imaging X-ray Polarimetry Explorer) to directly measure the magnetic fields of PSR J1101−6101, a pulsar located within what is often referred to ...

Sub-Neptunes are the most common type of planet in our galaxy. Bigger than Earth but smaller than Neptune, these worlds ...

I promise it's not an alien.

Now is the time to look for noctilucent clouds — shimmering ice clouds that glow near the edge of space.