Canada's NEOSSat space telescope was launched Monday atop an Indian rocket. It will monitor two groups of asteroids whose proximity to the sun makes them hard to see from Earth.
McCain faces angry crowd: Arizona is the only state with both of its senators working on immigration reform in Congress, a sign of the state's widely debated border security issues.
Bipartisan support is evident for universal background checks, stricter laws against gun trafficking, and limits on high-capacity magazines. But consensus in the GOP-controlled House will depend on what the Senate accomplishes.
Asteroid 2012 DA14 will buzz within 17,200 miles of Earth – a record for a known object of that size. While it's no threat to hit, it might help scientists find and track others that are.
Add to the long-studied global-warming perils of drought, insects, and wildfires, a new potential threat to the pinyon pine: dramatically lower production of seed-bearing cones.
The text of the State of the Union address as prepared for delivery by President Barack Obama, and provided by the press office of the White House.
Little in the president's State of the Union address was new – he's touched on the ideas many times before – but he didn't seem to be in a mood to bow to Republicans.
For many communities, the extent of heroin addiction comes as a shock. Yet efforts to confront it, including town-hall meetings and support groups, are slowly gaining ground.
Curiosity rover has found mineral-filled fissures in the rocks of Gale Crater on Mars. Together with other evidence, the minerals suggest that the rocks were once 'saturated with water.'
Holmes, who is charged with multiple counts of first-degree murder and attempted murder, won't have to enter a plea until March 12 after the judge granted a defense motion to delay that proceeding.