PRAGUE, Czech Republic — The universe really is expanding — astronomers are proposing to rewrite the textbooks to say that our solar system has 12 planets rather than the nine ...

However, these planets aren’t likely covered in oceans like some Kevin Costner 90s flick, they’re instead likely covered in an atmosphere of steam, the researchers believe.

Methuselah, located 12,400 light years away in the constellation Scorpio, is one of the most ancient exoplanets ever ...

There's a new moon king in our solar system: 12 new moons were discovered around Jupiter, which makes it the planet with the most moons. Jupiter is already the biggest planet in our solar system.

Other planets in the system could still be undetected, which is why the astronomers are calling for additional observations. Little is also known about the composition of the planets or their ...

The planet, Kepler-138e, doesn't appear to transit in front of the host star, so its presence hasn't been confirmed yet. Assuming it's accurate, however, the presence of Kepler-138e has consequences.

The extrasolar planet, or "exoplanet," named Gliese 12 b, orbits a small and cool red dwarf star located just around 40 light-years from Earth in the constellation Pisces.The exoplanet — which ...

Published Jan. 12, 2024 Updated Jan. 15, 2024. Humanity has spied more than 5,500 worlds orbiting other stars, ... WASP-69b, a planet orbiting a star 160 light-years away, ...

The planets will shine brighter than the stars, and Mars will look like a reddish-orange dot. Consider downloading stargazing apps to help with where to look, Sparkes said.