Wrinkled Mercury's shrinking history (BBC) "The planet Mercury is about 7km smaller today than when its crust first solidified over four billion years ago." (Due to cooling of its large metal core)
Cosmic inflation: 'Spectacular' discovery hailed (BBC) Find appears to show gravitational wave distortion in the Cosmic Microwave Background radiation, predicted by Big Bang "inflation" theory of the very early universe
RX J1532.9+3021: Extreme Power of Black Hole Revealed (NASA/CXC) Detection of a new "ultramassive" ("a mass more than 10 billion times that of the sun") black hole—A*, by way of contrast, is only about 4 *million* solar masses
