60-Second Space Scientific American

New evidence points to the evolution of the ability for bacteria to grab nitrogen from the atmosphere some 3.2 billion years ago, about 1.2 billion years earlier than thought—with implications for finding extraterrestrial life. Lee Billings reports

A dwarf galaxy near the Milky Way may consist of more dark matter than regular matter.* Clara Moskowitz reports

NASA has to deal with the unexpected financial consequences of robotic missions that just keep going. Lee Billings reports

The oldest group of terrestrial worlds now known formed some 11.2 billion years ago, more than six billion years before our sun and planets. Clara Moskowitz reports

 

New images from a NASA orbiter reveal Beagle 2’s final resting place. Lee Billings reports

Australian amateur astronomer Terry Lovejoy’s latest comet find is naked-eye visible in the southeast sky until January 24. Clara Moskowitz reports