As the Senate returns from a two-week spring recess Monday, topping its agenda is legislation to try to curb the kind of gun violence that took the lives of 20 first-graders in Connecticut last December.
Recent polls show broad popular support for enhanced background checks and bans on military-style guns and ammunition. But many members of Congress side with gun-rights advocates who oppose such measures.
And those advocates are increasingly making the case that Americans need guns to fight government tyranny.
President Obama will visit Connecticut on Monday to keep pushing for new federal gun laws. The poster children for this campaign are just that β children.
The president has invited kids to the White House to watch him sign new executive orders on guns. And the images of the kids who died at Sandy Hook Elementary School are a constant reminder of the toll gun violence can take.
The SETI Institute's Jill Tarter wants to accelerate our search for cosmic company. Using a growing array of radio telescopes, she and her team listen for patterns that may be a sign of intelligence elsewhere in the universe.
Is there more than one universe? Physicist Brian Greene shows how the unanswered questions of physics (starting with a big one: What caused the Big Bang?) have led to the theory that our own universe is just one of many in the "multiverse."
Playing a free concert comes with risks. Sure, more people will show up, but they may care less about who's on stage than they do about catching up with friends; ironically, it often means the band has to work harder to win over the crowd. Seattle's Ivan & Alyosha did just that on the final night of the 2013 South by Southwest music festival, at a club called TenOak in Austin, Texas.