Earth | Page 13 of 14 | Astronomy.com

Alien Life, Solar System

New study outlines “water world” theory of life’s origins

Asteroid will safely pass closer than Moon today

Exoplanets, Planets, Solar System

Cassini spacecraft provides new view of Saturn and Earth

Alien Life, Solar System

Life on Earth may have come from out of this world

The Week in Pictures: July 20–26, 2013

Exoplanets, Planets, Robotic Spaceflight, Solar System

NASA releases images of Earth by distant spacecraft

Newly discovered flux in Earth may solve missing mantle mystery

Study shows how early Earth kept warm enough to support life

Alien Life, Solar System, The Moon

Water on Moon, Earth comes from the same source, study finds

Exoplanets, Planets, Solar System

NASA’s Van Allen Probes discover a surprise circling Earth

Did an eighth-century gamma-ray burst irradiate Earth?

How massive must a colliding body be to disturb Earth’s orbit?