The Local Supercluster of galaxies (also know as the Virgo Supercluster) is the irregular supercluster that contains the Local Group of galaxies, which in turn contains the Milky Way and Andromeda galaxies. At least 100 galaxy groups and clusters are located within its diameter of 33 megaparsecs (110 million light-years).
Curiosity RoverLast Updated on 2012-08-06 at 16:47
The Curiosity Rover is designed to examine Martian rocks and soils. Two instruments on its arm can study rocks up close, a drill can collect sample material and a scoop can... More »
Solar radiationLast Updated on 2012-05-24 at 16:12
Almost all of the energy that drives the various systems (climate systems, ecosystems, hydrologic systems, etc.) found on the Earth originates from the sun... More »
Solar SystemLast Updated on 2011-10-04 at 15:53
Stars often have a number of objects orbiting around them in an adjacent region of space known as a solar system. Our solar system formed about five billion years ago and... More »