Federal officials start the four-day expedition Monday. Its aim is to determine whether the Asian carp has infiltrated water locks that are designed to keep the species out of Lake Michigan.
Curiosity rover, formally known as the Mars Science Laboratory, will land at the foot of an 18,000-foot mountain in Gale crater, NASA announced Friday. The mount is expected to yield unparalleled information on where and when life might have existed on Mars.
A $2 billion restoration effort may help rehabilitate Lake Michigan and the other Great Lakes, but environmentalists say it may be too late to reverse four centuries' worth of damage.
Gas prices have fallen to $3.72 since topping out at $3.98 a gallon in May. Plenty of supply and soft demand mean gas prices are likely to keep falling this summer – perhaps another 30 cents a gallon.
Rising waters threaten Montana, North Dakota, and South Dakota, and are expected to push south soon. The Midwest will be underwater all summer, say officials.
The Supreme Court ruled that overcrowded prisons in California amount to cruel and unusual punishment. Reducing the prison population does not have to pit human dignity against public safety.
A Black Rattlesnake, which had been rescued with other animals while being trafficked illegally, is seen inside a plastic cylinder at the Federal Wildlife Conservation Center on the outskirts of Mexico City, Friday, May 20. According to Mexico's Federal Wildlife Conservation Department, at least 2,500 different animals are rescued annually in the country.
Readers of books love lists. That's why book-review editor J. Peder Zane asked 125 writers – everyone from Norman Mailer to Jonathan Franzen to Margaret Drabble – to pick their very favorite books of all time. Out of all the books in the world, here are the 10 most selected by Zane's illustrious group. (You can see this and other book lists in Zane's book "The Top Ten: Writers Pick Their Favorite Books.")
Four lion cubs sit in a basket as they are christened at Hagenbecks zoo in Hamburg, Germany. The cubs, named Bandele, Batou, Naledi and Sakina, were born on January 31.
Before the current levee system was built, Mississippi River floods helped replenish Louisiana coastal wetlands with silt. Now that silt goes into the Gulf and the coastline is disappearing. But scientists have a plan, and the great flood of 2011 could help them bring it about.