"life"

The spacecraft has detected the nearest thing to Earth yet discovered — a planet that’s a bit bigger and squarely inside the “habitable zone” for life.

The water and sediment flow might have been massive enough to build a mountain, NASA researchers say.

Since her birth in 1900, Anna Stoehr has seen dramatic shifts in technology. But when the Minnesota woman tried recently to create a Facebook account, she hit a snag.

Russia has begun development of new nuclear weapons.

Retired Anglican bishop Desmond Tutu, who describes as “disgraceful” the way former South African President Nelson Mandela was treated in his last, enfeebled days, has thrown his support behind a British assisted-dying bill.

Brett Hurt was one of the first of more than 20 people (most of them students) injured when a young man wielding two steak knives began stabbing and slashing at other teens.

The Afghan Taliban said it was cutting off talks with Washington to trade long-time captive U.S. Army Sgt. Bowe Bergdahl for five of the prisoners held at Guantanamo.

Former NSA contractor Edward Snowden says that it is “not possible” for him to come back home to face charges, unless changes are made to the Whistleblower Protection Act.

During a memorial service at South Africa’s largest soccer stadium, President Obama delivered a 20-minute eulogy that compared Mandela to Gandhi, Martin Luther King, Abraham Lincoln and America’s founding fathers.