In a conventional system like our own, rocky planets such as Mercury, Venus, Earth, and Mars orbit closest to the host star. Farther out, gas giants ...

Scientists have identified a rocky outer planet in a system where a gas giant was expected. The discovery challenges ...

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

If executed at the scale, Musk's orbital data center plan could have devastating effects on the environment and the ...

At a glance, Saturn’s rings appear calm and pristine when observed from afar. These rings are quite narrow and consist mainly ...

For the first time in Brazil, researchers have identified a field of tektites. These are natural glasses formed by the high-energy impact of extraterrestrial bodies against Earth's surface. These ...

Scientists at Lawrence Livermore National Laboratory simulated one million satellite orbits in the vast stretch of space between Earth and the Moon, and fewer than one in ten survived the full ...

Under this new model, Titan itself is the result of a collision between two earlier moons: a large body called “Proto-Titan,” nearly as massive as modern Titan, and a smaller companion dubbed ...

Odd bursts, shifting expansion rates, and oversized early galaxies are pushing astronomers to refine physics, not rewrite it, ...

For the first time ever, scientists have observed in near real time a cloud of air pollution created as a SpaceX rocket burned up in Earth's atmosphere.

Astronomers have long debated why so many icy objects in the outer solar system look like snowmen. Michigan State University researchers now have ...

Astronomers have long debated why so many icy objects in the outer solar system look like snowmen. Michigan State University ...