Must-see imagery on the WebBy Alan Boyle, Science Editor, NBC News• Chandra: Stellar remains linked to oldest known supernova• PSU: Scientists snap images of brown dwarf | More from Spitzer• JPL: Opportunity rover examines Beagle Crater • Astrosurf: Spot the spaceships | More from SpaceWeather.comAlan Boyle, Science Editor, NBC News
