An unmanned cargo vehicle on Friday successfully docked with the International Space Station, in a delicate maneuver after its navigation antenna failed to properly deploy following launch, Russian mission control and NASA said.

European scientists said Thursday that a new laboratory experiment shows the Earth's core is likely much hotter than last reported 20 years ago.

A 59-year-old Russian cosmonaut became the world's oldest spacewalker Friday, joining a much younger cosmonaut's son for maintenance work outside the International Space Station.

The world's oldest person turned 116 on Friday as local health chiefs in Japan launch a study to find out why he and many of those around him have lived so long.

Biologists on Wednesday said they had unraveled the DNA of the coelacanth, a “living fossil” fish whose ancient lineage can shed light on how life in the sea crept onto land hundreds of millions of years ago.

Carbon-dating of an ancient beam from a Guatemalan temple may help end a century-long debate about the Mayan calendar, anthropologists said on Thursday.

She walked with a knock-kneed gait, with a heel like a chimp but the upright posture of a human, and she may provide the most complete evidence yet of early man's closest ancestor, scientists said Thursday.

Stephen Hawking, the British physicist who spent his career decoding the universe and even experienced weightlessness, is urging the continuation of space exploration — for humanity's sake.

A new, detailed map of the most ancient light in the cosmos has revealed our Universe to be about 80 million years older than thought, the European Space Agency (ESA) said Thursday.

New rock dating techniques have helped narrow the timeframe of a chain of massive volcanic eruptions that wiped out half the world's species 200 million years ago, a study said Thursday.