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January 28, 2016

Family members of Challenger victims to mark 30 years since shuttle disaster

As families of the lost Challenger astronauts gather with NASA to mark the space shuttle accident's 30th anniversary, there's a new voice to address the crowd.

January 28, 2016

Pentagon defends use of Russian engines to launch satellites

Senior Pentagon officials on Wednesday sought to defend the use of Russian-made rocket engines to send U.S. military satellites into space, telling exasperated lawmakers they are moving quickly to end the practice and rely on American-made rockets for the launches.

January 28, 2016

SpaceX tests spacecraft parachutes that will land astronauts back on Earth

SpaceX has successfully tested the parachute system that will one day be used to land its Crew Dragon spacecraft carrying astronauts back from the International Space Station.

January 20, 2016

Wood-based replacement for Styrofoam?

Four4Four: Science

January 19, 2016

Flower blooms on international space station for first time

NASA astronaut Scott Kelly is proving quite the gardener in space.

January 18, 2016

Spectacular video shows latest SpaceX rocket landing attempt

SpaceX CEO Elon Musk has shared a spectacular video of the company’s latest attempt to land a rocket on a floating ocean barge.

January 18, 2016

Stunning NASA image shows Pluto's atmosphere

NASA has released an incredible image of the haze layers in Pluto’s atmosphere taken by the New Horizons spacecraft.

January 17, 2016

SpaceX botches rocket landing on California barge

A SpaceX rocket that will attempt to land its discarded first stage on a floating barge launched Sunday morning under mostly cloudy skies from the California coast.

January 15, 2016

Spacewalk aborted after water leaks into astronaut's helmet

Two spacewalking astronauts — including Britain's first — successfully restored full power to the International Space Station on Friday. But the spacewalk was cut short after water leaked into one of the men's helmets in a scary repeat of a near-drowning 2½ years ago.

January 15, 2016

Britain gets 1st spacewalker

Two astronauts — including Britain's first spacewalker — ventured outside Friday morning to restore full power to the International Space Station.