Scientists now have direct evidence that a planet — not just failed stars — can rove the galaxy after a violent expulsion from its orbit. - NASA / JPL-Caltech / R. Hurt illustration Astronomers have ...

Binary star systems are not unusual in the universe. In fact, half of all Sun-like stars in the Milky Way galaxy have a companion star. In theory, this means that planets in binary star systems, ...

In a blow to anyone dreaming that complex life may exist elsewhere in the universe, a new study suggests we're unlikely to find it around many of the most common stars in the galaxy. Earth-like ...

A galaxy is a massive, gravitationally bound system. It contains stars, stellar remnants, interstellar gas and dust, and a ...

There are worlds like hot Jupiters, gigantic and very hot, as well as ocean worlds and super-Earths with a rocky structure but a much thicker atmosphere than our own planet. Now, a new study suggests ...

FORT WAYNE, Ind. (WANE) — Attention astronomy fans: This week you have the opportunity to see all of the planets in the night sky — but you’ll have to be lucky and have some special equipment. The ...

Out of the 6,000 known exoplanets, it's these rocky worlds that are most worthy of attention in the search for life beyond ...

Scientists weighed newborn planets for the first time, revealing puffy worlds that will shrink into super-Earths and sub-Neptunes, the galaxy's most common planets. (Nanowerk News) One of the biggest ...