Jupiter harbors more oxygen than the sun, a new study finds, giving astronomers a crucial clue about how our solar system's ...

Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

Unlike earlier studies, which often examined chemistry and atmospheric motion separately, the new simulations combined both.

The star system V1298 Tau reveals that many planets begin as large, low-density worlds that slowly shrink and shed their ...

NASA has confirmed that there are over 6,000 exoplanets floating out there in the galaxy, with another 8,000 exoplanets that ...

A rare triple conjunction of Venus, Mars and Mercury is happening on the opposite side of the solar system to where Earth is, ...

Jupiter currently shines as a brilliant silvery "star" in the constellation Gemini the Twins, low in the east-northeast sky ...

Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy material, the ingredients of planets," according to NASA's Goddard Space ...

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

LYNCHBURG, Va. (WSET) — If you're trying to get a beautiful look at the planets in our solar system, you're in luck. Between February 25 and February 28, all seven planets in our solar system will be ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...

Our Solar System has eight planets, a few dwarf planets and more than 200 moons. But wait. Are you seeing double? Or did every planet suddenly get a twin? Where would each planet’s double fit in? Why ...