In a memorable image from the 1977 film “Star Wars,” the young hero Luke Skywalker gazes at two suns setting above the horizon on his desert planet Tatooine. Astronomers since then indeed have ...

Scientists are investigating the number of super-Earths compared to Neptune-sized planets in other solar systems. Their research suggests that super-Earths are at least as common as Neptune-sized ...

"Thanks to the high resolution of our new images, we detected a faint structure on the northeast side of this supernova ...

A new study released on Thursday describes a search for what are called "microlensing" events, where a planet acts as a ...

A dazzling snapshot from ESO’s Paranal Observatory captures a rare sky parade — the Moon, a comet, and nearly every visible planet strung across the heavens. This celestial lineup is an optical ...

A surprisingly well-formed spiral galaxy has been spotted just a billion years after the Big Bang, challenging long-held ...

"This measurement of the planet population from planets somewhat larger than Earth all the way to the size of Jupiter and ...

Using the James Webb Space Telescope (JWST), scientists analyzed far-away bodies -- known as Trans-Neptunian Objects (TNOs) -- and found varying traces of methanol. The discoveries are helping them ...

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the discovery of a planet about twice the size of Earth orbiting its star ...

NASA's Nancy Grace Roman Space Telescope team shared Thursday the designs for the three core surveys the mission will conduct ...

Hubble is still going strong 35 years after it was launched into space. Celebrate its anniversary with some out-of-this-world images.

A jaw-dropping video composite of the Milky Way showcases the awe-inspiring scale of the cosmos. The video, stitched together from a series of recent observations, reveals the vastness of our galaxy, ...