A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

UK researchers have confirmed the existence of a “super Earth” located 20 light-years away that could reveal the existence of ...

Understanding chorus waves is vital, as they create fast-moving, highly energetic electrons (known as killer electrons) that ...

Life on Earth extends far beyond the vibrant rainforests and sunlit coral reefs. Deep below the surface, an extraordinary ...

On Sunday (Jan. 12), the Red Planet will make its close approach of Earth at 8:32 a.m. EST (13:32 GMT). This event, known as ...

Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

A new analysis of marsquakes measured by NASA’s InSight lander indicates Mars has a solid inner core – but other researchers ...

The Red Planet will be at its closest point to Earth, also known as perigee, on Jan. 12 and will be exactly opposite the sun ...

The northern plains of Mars, marked by thousands of mounds and hills, hold significant evidence of the planet's watery past.

A collection of Martian rocks could reveal details about potential past life on the Red Planet – but first NASA has to get ...

Though it's a cold, dead planet, Mars still has its own natural beauty about it. This image shows us something we'll never see on Earth.

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...