Astronomers say they spotted signs of a giant explosion releasing from a star beyond our solar system, one powerful enough to ...

A team of researchers has demonstrated a new way in which sub-Neptune-sized exoplanets could produce a great deal of water.

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

NASA’s latest mission, designed to study the effects of the solar wind on the atmosphere of Mars, was ironically delayed on ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar ...

Our solar system has eight planets, four of which move in slightly different elliptical orbits which are tilted compared to ...

Astronomers have spotted a dwarf planet far beyond the orbit of Pluto, a rare find that marks the largest celestial object ever discovered by a Canadian-led team and one that could help to answer key ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

“Cloudy for the morning, turning to clear with scorching heat in the afternoon.” While this might describe a typical late-summer day in many places on Earth, it may also apply to planets outside our ...

From a sliver of a coastal island, a multistage rocket is set to blast off into the Florida sky tonight, on a quest to answer one of astronomy's great mysteries: Are there other planets like Earth out ...