As organisms develop from embryos, groups of cells migrate and reshape themselves to form all manner of complex tissues.

In sending a car-sized rotorcraft to explore Saturn's moon Titan, NASA's Dragonfly mission will undertake an unprecedented ...

A colossal bar of iron hidden inside the Ring Nebula may be the ghostly remains of a planet destroyed by a dying star.

Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...

Study finds Mars helps pace Earth's ice ages through gravity. Remove Mars, and a major 2.4-million-year climate rhythm ...

Have you ever wondered why Earth goes through massive climate swings, from freezing ice ages to warmer periods like today?

On the other were two more figures in space suits, with the tiniest Stars and Stripes planted in the lunar soil. Cruz ...

At the start of the year, Earth will quietly reach a milestone in its orbit around the sun. Known as perihelion, this is the moment when our planet is closer to the sun than at any other point in the ...

Eleven years in Mars orbit, terabytes of vital information on the Martian atmosphere, and over half a billion dollars in government funding. This is what was brought into peril on December 6th, 2025, ...

"Anything you can do in a terrestrial data center, I’m expecting to be able to be done in space." As critics have pointed out, the logistical obstacles are comically immense, from concerns over ...

NASA has lost contact with one of its three spacecraft orbiting Mars, the agency announced Tuesday. Meanwhile, a second Mars orbiter is perilously close to running out of fuel, and the third mission ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Seth Berkman Seth Berkman is a fitness writer. He incorporates testing into ...