Pluto

Number of satellites: 1 the most important, 2 very small discovered by the Hubble Space Telescope in 2006.

The story of Pluto, its discovery

For Adams and Le Verrier, Neptune was the solution. For generations of astronomers who followed would become a problem.

How can A Stars is growth

Spitzer will present significant information on the structure and growth of stars and the circumstellar medium (surrounding the star). The discovery and characterization of circumstellar disks of gas and dust, signs of extra-solar planetary systems is one of the most important scientific goals of the Spitzer mission

Molecular gas

The giant molecular clouds are composed primarily of hydrogen, are the reserve materials from which stars form. 

A dwarf galaxy that is about 70 million light years from Earth

Most galaxies in the universe are classified into three forms: elliptical, disc-and usually flattened, and irregular spiral arms. That is so strange Leda 074886, a dwarf galaxy that is about 70 million light years from Earth is rectangular or, as astronomers have discovered, like a bright emerald. 

"It's one of those things that just make you smile because it should not exist or, rather, did not expect to exist," says Alsiter Graham (Swinburne University of Technology in Melbourne, Australia), lead researcher.