Each planet in our solar system is given a unique, humorous catchphrase that reflects its personality and role. From ...

Is Earth really exceptional?  A new book seems to reaffirm that notion.  But given the right conditions, primitive life may be a mere byproduct of biophysics.

Each planet in the solar system is characterized as different cricket team players, with unique behaviors and skills. Earth ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Four planets will be widely visible to the naked eye through part of February, but calling them a 'planetary alignment' may ...

Astronomers at the NASA Goddard Space Flight Center may have discovered a star hurtling through the Milky Way with a planet ...

Astronomers may have found a star racing through our galaxy at an incredible speed—dragging a planet along with it! If ...

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

New research on meteorites may finally hold the answers to why Earth and Mars suffer from a mysterious absence of specific ...

Astronomers may have discovered a scrawny star bolting through the middle of our galaxy with a planet in tow. If confirmed, ...

To get somewhere in outer space, you can’t exactly drive in a straight line. Orbits are tricky things, and sending a probe to ...