Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner ...

The chemical composition of meteorites and asteroids acts as a kind of fingerprint, providing information about the origin of ...

Planetary scientists led by Paolo Sossi have determined that Earth assembled almost entirely from material originating in the ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression shows the "inside out" planetary system around the star LHS 1903. - ESA An exoplanetary system about 116 ...

For those who enjoy viewing the night sky, a unique opportunity is just around the corner late this month. Six planets in the solar system are going to align in the western sky just after sunset.

This weekend, a planetary parade will occur as the moon, Jupiter, Uranus, Saturn, Neptune, Mercury, and Venus line up in the sky shortly after sunset. For optimal viewing, head outdoors 30-45 minutes ...