Identical twins offer up selves for space science

Astronauts Scott and Mark Kelly will take part in an unprecedented study of identical twins to better understand the effects of prolonged weightlessness by comparing the twin in space with the twin on the ground.

Three astronauts land back on Earth in Soyuz capsule

Three astronauts, including a Russian and an American, touched down safely on Earth Wednesday aboard a Soyuz capsule, the first such landing since Russia's relationship with the West slumped amid the Ukraine crisis.

Second HI-SEAS Mars space analog study begins

A new space odyssey began tonight as the six crew members of the new Hawai'i Space Exploration and Analog Simulation (HI-SEAS) mission entered their remote habitat on the first night of a four-month-long journey.

Image: Solar array panels on Russian segment of space station

Solar array panels on the Russian segment of the International Space Station and a blue and white part of Earth are photographed by an Expedition 38 crew member while the crew watches for the arrival of the ISS Progress 54 ...

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