The Hubble Space Telescope has captured a spectacular new image of the largest and most unusual protoplanetary disk ever ...

What was originally thought to be a planet orbiting the Fomalhaut star was probably just the fallout of a wild collision.

Mars looks familiar in telescope images, but its thin air, deep cold and radiation soaked surface would kill an unprotected ...

Mars, often depicted as a barren red planet, is far from lifeless. With its thin atmosphere and dusty surface, it is an ...