The current image of Mars as an arid and hostile desert contrasts sharply with the history revealed by its surface. Channels, ...

Mercury, Venus, Neptune, Saturn, Uranus and Jupiter will appear together shortly after sunset on Feb. 28 — but is this the "planet parade" we've been waiting for?

A newly detected gravitational wave, GW250114, is giving scientists their clearest look yet at a black hole collision—and a powerful way to test Einstein’s theory of gravity. Its clarity allowed ...

And as detailed in a new paper, published in The Planetary Science Journal last month, they found something surprising down there: Jupiter appears to contain one-and-a-half times as much oxygen as the ...

This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

Jupiter’s swirling storms have concealed its true makeup for centuries, but a new model is finally peeling back the clouds.

For those who watch gravitational waves roll in from the universe, GW250114 is a big one. It's the clearest gravitational ...

Jupiter and Saturn host strikingly different polar storms, despite being similar giant planets, and scientists have long wondered why. New simulations suggest the answer may lie deep below the clouds.

The model also proved the theorized existence of the Pioneer fragment, a remnant of the ancient Farrallon plate that used to traverse the California coastline that has not all but disappeared. This ...

The researchers stressed the lack of openness in the top climate risk publications doesn’t indicate flawed research or ...

For a long time, scientists assumed that Earth's water was delivered by asteroids and comets billions of years ago. This coincided with the Late Heavy Bombardment (ca. 4.1 to 3.8 billion years ago), a ...

NASA is quietly ending financial support for independent planetary science advisory groups, according to a letter posted to the agency’s website on January 16. The affected groups have historically ...