There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but ...

Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

Nearly a century after Pluto’s discovery, astronomers are still hunting for mysterious planets beyond Neptune - including a ...

An international team of scientists confirmed the first record of a plasma ejection from a red dwarf star outside the solar ...

Our solar system is much like a trail of microcosmic breadcrumbs: Follow the molecular bits as far back as they go, and you'll learn a thing or two about where many of our planets and other celestial ...

What can white dwarf stars eating their own planets teach astronomers about planetary and solar system formation and ...

What's the best way to reveal what an exoplanet is made of? Wait for it to get gravitationally shredded and engulfed by its ...

Exciting space news! Astronomers have found evidence that Ceres, a dwarf planet (a.k.a. large asteroid) in between Mars and Jupiter, has water vapor plumes. The discovery, not unlike that of Jupiter's ...

Researchers at McGill University and collaborating institutions have mapped the atmospheric features of a planetary-mass ...

Astronomers were surprised to find phosphine gas in the atmosphere of an ancient brown dwarf, Wolf 1130C, using the James ...