Exoplanets are planets that orbit stars other than the sun and thus exist outside the solar system. The word "exoplanet" ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

Scientists are actively searching for exoplanets, planets beyond our solar system, that might harbor life. Using advanced telescopes and methods like the transit and radial velocity techniques, they ...

The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming into view, revealing hints of a surprising past – and the origin of Saturn's ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

2 vanished 'super Earths' once orbited near Uranus and Neptune, new study hints Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The ...