Look up this week for February’s full snow moon and to catch the last glimpse of a visible parade of planets in the night sky before they fade from view.

Scientists have officially confirmed the discovery of a new super-Earth, HD 20794 d, located just 20 light-years away. This ...

The internet erupted in controversy over Felisa Wolfe-Simon and colleagues’ claim of a microbe thriving on arsenic. Nearly 15 ...

This artist's concept visualizes a super-Neptune world orbiting a low-mass star near the center of our Milky Way galaxy.

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...

Caltech scientists are developing laser-driven lightsails that could push spacecraft beyond our solar system. Their research ...

Our modern era of space observation and exploration deepens our connection with the universe—and with each other. When NASA ...

"What if the iron stones were warming up to the point where they would actually melt the glacial ice beneath them and sink into it, perhaps even descending far enough so as to be hidden below the ...