NASA's Fermi Gamma-ray Space Telescope unveiled a previously unseen structure centered on the Milky Way. The feature spans 50,000 light-years.
The experiments that can only be conducted in space
The frigid ice of Jupiter
In the 19th century the discovery of the Rosetta Stone unlocked the secrets of Egyptian hieroglyphs. Today, 21st century scientists are hoping that The Rosetta Mission will unlock space secrets; give us information about comets for example, their origins and their influence in space.
And, like cosmic Russian dolls, our universe maybe nested inside a black hole in another universe, a new study says.
