Generations of physicists have claimed that time is an illusion. But not all agree. In his book Time Reborn: From the Crisis in Physics to the Future of the Universe, theoretical physicist Lee Smolin argues that time exists--and he says time is key to understanding the evolution of the universe.
This is SCIENCE FRIDAY, I'm Ira Flatow. This week, scientists at the Oregon Health and Science University, OHSU, announced a breakthrough in cloning of a human embryo. They took adult cells, put the cells into specially prepared human eggs and created genetically identical embryos. It's something lots of stem cell researchers have been trying to do for years without success.
What's on your plate? What do you like to eat? What are you eating for lunch, dinner at this point? As with many things, the answer to that might have a lot to do with what you're accustomed to do and, you know, what part of the world you live in. In some parts of the world, insects can be a delicious part of the diet. Well here not so much.
Tarik al-Nakib (left) says Gaza Strip police officers picked him up on the street and forced him to get his hair cut recently. He's growing it out again in a style similar to that of his friend Mohammad Abu Ramadan.
Kentucky Derby winner Orb gets a blanket put on him by exercise rider Jennifer Patterson and trainer Shug McGaughey after a workout earlier this week at Pimlico Race Course in Baltimore. Orb contends Saturday for the Preakness Stakes, the second leg of thoroughbred racing's Triple Crown.
Credit Rob Carr / Getty Images
Orb takes a drink during a bath Thursday at Pimlico Race Course in Baltimore. The feisty bay colt won the Kentucky Derby on May 4 and is favored to win Saturday's Preakness Stakes at Pimlico.
All eyes may be on Orb, the winner of the Kentucky Derby and the favorite to win Saturday's Preakness Stakes, but behind this feisty bay colt is a quiet, humble man named Shug McGaughey who has one thing on his mind: his job.
A woman who just bought toilet paper at a grocery store reads her receipt as she leaves the store in Caracas, Venezuela, on Wednesday. The government says it will import 50 million rolls of toilet paper amid a shortage.
Amazon's U.K. unit racked up sales of $6.5 billion last year, but only paid $3.7 million in <a href="http://www.npr.org/blogs/thetwo-way/2013/05/16/184357484/book-news-amazons-tiny-tax-payment-draws-fresh-scrutiny">corporate taxes</a>.
Former House Speaker Newt Gingrich, who was front-and-center during the Republican-led impeachment of President Clinton in 1998, is cautioning his GOP colleagues about the risk of appearing to be too eager as they dig into the scandals now dogging the Obama administration.