Swift Survey Finds 'Missing' Active Galaxies
Source: NASA Posted: 1/27/11 An international team of scientists using data from NASA's Swift satellite confirms the existence of a largely unseen population of black-hole-powered galaxies.
Runaway Star Plows Through Space
Source: NASA/JPL Posted: 1/25/11 A massive star flung away from its former companion is plowing through space dust. The result is a brilliant bow shock, seen here as a yellow arc in a new image from NASA's Wide-field Infrared Survey Explorer, or WISE.
Voyager Celebrates 25 Years Since Uranus Visit
Source: NASA/JPL Posted: 1/25/11 As NASA's Voyager 2 spacecraft made the only close approach to date of our mysterious seventh planet Uranus 25 years ago, Project Scientist Ed Stone and the Voyager team gathered at NASA's Jet Propulsion Laboratory, Pasadena, Calif., to pore over the data coming in.
Hidden in plain sight
Source: MIT Posted: 1/25/11 A new approach to invisibility cloaking gets much closer to the science-fiction version, using simple and inexpensive materials.
'The strength and weakness of physicists is that we believe in what we can measure. And if we can't measure it, then we say it probably doesn't exist. And that closes us off to an enormous amount of phenomena that we may not be able to measure because they only happened once. For example, the Big Bang. ... That's one reason why they scoffed at higher dimensions for so many years. Now we realize that there's no alternative... '