The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

EVANSTON, Ill. — Except for the fact that we call it home, for centuries astronomers didn’t have any particular reason to believe that our solar system was anything special in the universe. But, ...

Why it's so special: This iconic montage features images of Jupiter, Saturn, Uranus and Neptune captured between 2014 and 2024 as part of the Hubble Space Telescope's Outer Planet Atmospheres Legacy ...

When the Sun runs out of hydrogen fuel and expands into a red giant, it will eventually encompass the innermost planets of the solar system, out to about Earth’s orbit. Being closer to our enlarged ...

In the distant future—about six billion or seven billion years hence—the sun will start to die, swelling up into a bloated red giant. In a span of several hundred million years it will blow away its ...

Is there life on other planets? This is a question that humanity has been trying to answer for a very long time now. We haven’t found a single piece of direct evidence proving that it is there, but ...

Planets orbiting dead stars known as white dwarfs might be able to remain habitable thanks to general relativity subtly altering their motion. When stars like our sun run out of fuel, they expand and ...