After decades of global dominance, America's space shuttle program ended last summer while countries like Russia, China and India continue to advance their programs. But astrophysicist Neil deGrasse Tyson, author of the new book Space Chronicles: Facing the Ultimate Frontier, says America's space program is at a critical moment. He thinks it's time for America to invest heavily in space exploration and research.
When a nerve is injured, it's often hard to get it to regrow fast enough to restore function.
But now researchers say they can speed up that process, so that damaged nerves can be healed in days instead of months — at least in rats.
The scientists say they've developed a technique that reconnects the severed ends of a nerve, allowing it to begin carrying messages again very quickly. Usually, severed nerves must regrow from the point of injury — a process that can take months, if it ever happens.
For decades, scientists have thought that one of the big differences between men and women is that men can make children all their lives because men never stop making sperm. But scientific dogma said women aren't so lucky when it comes to their eggs.
The halls of the State Department are haunted, not by actual ghosts, but by people who might as well be ghosts: whistleblowers, people who angered someone powerful and people who for one reason or another, can't be fired.
"People like me, that the State Department no longer wants, but for some reason can't or won't fire, are assigned to what we call 'hallwalking,'" says author Peter Van Buren.
When voters in Michigan go the polls Tuesday, it's unlikely many will tick the box for former House Speaker Newt Gingrich. In part, that's because Gingrich has all but written off the state, leaving his opponents to fight over it.
Part two of a two-part series on the Keystone XL pipeline
Gas isn't like a rare bottle of wine that fetches a high price just because it's rare. But at the same time, no one can agree what drives gas prices. Demand for gasoline in the U.S. is at its lowest point in more than a decade; domestic oil production is at an eight-year high.
The first phase of a wide-ranging trial for the 2010 Deepwater Horizon accident and oil spill in the Gulf of Mexico is scheduled to begin Monday. Host Rachel Martin talks with NPR's Debbie Elliott and Jeff Brady, who will cover the trial.
This is WEEKEND EDITION, from NPR News. I'm Rachel Martin. In West Africa, the people of Senegal are voting for their new president today after days of violent street protests. The sitting president, 85-year-old Abdoulaye Wade, has been in power for 12 years, and he is seeking a third term in office. His opposition rivals say that's illegal, and they insist the president must go now.