Forty years ago NASA launched the Viking program- often considered to be the first astrobiological mission devoted to the search of life on Mars. After this mission, it was concluded that life had little.
HubbleSite - Picture Album: The Antennae Galaxies/NGC These two spiral galaxies, drawn together by gravity, started to interact a few hundred million years ago. The Antennae Galaxies are the nearest and youngest examples of a pair of colliding galaxies.
The Eagle Has Risen: Stellar Spire in the Eagle Nebula. A billowing tower of gas and dust rises from the stellar nursery known as the Eagle Nebula. This small piece of the Eagle Nebula is 57 trillion miles long trillion km).