Longtime NASA astronaut Don Pettit is set to return from his fourth trip to space on Saturday night. Here are some of his ...

NASA’s Curiosity rover has discovered siderite, a carbonate mineral, in Mars’ Gale Crater, offering strong evidence that the ...

NASA astronaut Don Pettit and two cosmonaut colleagues will return to Earth this evening (April 19), and you can watch their homecoming live.

QGGPf is a gradiometer, an instrument that measures variations in Earth's gravity by comparing the acceleration at which two nearby objects (called test masses) fall.

Martha Stewart appeared to mock Katy Perry's recent trip to space, joining other celebrity critics, including Olivia Wilde ...

The exoplanet K2-18b could harbor a massive ocean, but scientists will need to study the planet more to see if it’s really ...

NASA's Curiosity rover landed on Mars on Aug. 5, 2012, and has travelled more than 34 kilometres on the Martian surface. The discovery of carbonate suggests that the atmosphere contained enough carbon ...

K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

NASA and partners are building the first quantum gravity sensor for space, a breakthrough instrument that uses ultra-cold ...

A bold geochemical model reveals that TOI‑270 d, a sub‑Neptune 73 light‑years away, is likely a giant rocky world cloaked in ...

In the piece, columnist Moira Donegan writes in part that the star-studded Blue Origin flight “served as a kind of perverse funeral for the America that once enabled both scientific advancement and ...

Astronaut Don Pettit, who has been at the International Space Station since September, is set to land Saturday in Kazakhstan ...