The Hubble Space Telescope has detected a tiny, dark moon circling the dwarf planet on the frozen fringes of our solar system. Scientists announced the discovery by some members of the team that spotted Pluto's smaller moons years ago.
The Milky Way, the brilliant river of stars that has dominated the night sky and human imaginations since time immemorial, is but a faded memory to one third of humanity and 80 percent of Americans, according to a new global atlas of light pollution produced by Italian and American scientists.
Fossils of two species of previously unknown ancient multicellular marine algae have been discovered. Their age is estimated to be more than 555 million years old, placing the fossils in the last part of Precambrian times.