Our sun is about halfway through its life, which means Earth is as well. After a star exhausts its hydrogen nuclear fuel, its diameter expands more than a hundredfold, engulfing any unlucky planets in ...

Outer space never fails to remind us just how much we don't know. Astronomers have uncovered a lemon-shaped planet that ...

The exoplanet, dubbed PSR J2322-2650 b, has a helium-and-carbon atmosphere, something researchers say they've never seen ...

Space is full of unsolved mysteries, and a team using NASA’s James Webb Space Telescope have recently turned up a doozy.

One side of TOI-561 b is constantly locked towards its star, and the observations showed that this face is very cool for such a closely orbiting planet. A thick atmosphere must be transferring heat ...

Astronomers have discovered a bizarre lemon-shaped exoplanet with extreme heat and a carbon-rich atmosphere, leaving experts unsure how it even formed.

Space startup's CEO talks about putting tens of thousands of satellites in orbit to serve as networked data centers.

Kuiper Belt clues, competing ideas, and how Rubin Observatory could finally reveal the hidden world soon by 2026.

Interstellar comet 3I/ATLAS makes its closest approach to Earth on Dec. 19. Here's how you can track its progress both during ...

Astronomers using W. M. Keck Observatory and Subaru Telescope on the Big Island’s Mauna Kea discovered a massive planet and a ...

NATO-nation intelligence services believe Russia is developing a weapon to target Starlink satellites. Intelligence findings ...

Satellite streaks could spoil about one in three Hubble images, even when the telescope stays above Earth's weather.