dec 152012
 
Astronomers Discover Galaxies Near Cosmic Dawn

  A team of astronomers led by the California Institute of Technology (Caltech) has used NASA’s Hubble Space Telescope to discover seven of the most primitive and distant galaxies ever seen. This timeline shows the evolution of the Universe since the Big Bang. The new observations, labeled “Hubble 2012,” explored the deepest reaches of the [continue reading]

feb 222012
 
NASA's Hubble Reveals a New Class of Extrasolar Planet

Image: Artist’s View of Extrasolar Planet GJ1214b Observations by NASA’s Hubble Space Telescope have come up with a new class of planet, a waterworld enshrouded by a thick, steamy atmosphere. It’s smaller than Uranus but larger than Earth. Zachory Berta of the Harvard-Smithsonian Center for Astrophysics (CfA) and colleagues made the observations of the planet [continue reading]