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ISS crew conducts space walk to remove faulty ammonia pump

Last Updated: Sunday, December 22, 2013, 11:06

NASA astronauts Rick Mastracchio and Mike Hopkins conducted a 5 hour and 28 minute spacewalk on Saturday to remove a faulty ammonia pump on the ISS.

Robots to the rescue at international trials in Florida

Last Updated: Sunday, December 22, 2013, 09:39

As a squat, red-and-black robot nicknamed CHIMP gingerly pushed open a spring-loaded door a gust of wind swooped down onto the track at the Homestead-Miami Speedway and slammed the door shut, eliciting a collective sigh of disappointment from the audience.

US astronauts begin spacewalk for station repairs

Last Updated: Saturday, December 21, 2013, 19:54

Two US astronauts today stepped outside the International Space Station for the first of three spacewalks to fix a broken equipment cooling system, NASA said.

Argentina launches research rocket

Last Updated: Saturday, December 21, 2013, 14:18

Argentina has successfully launched a research rocket as part of its space programme, the defence ministry said.

Damage suffered by Curiosity`s aluminum wheels raise concern

Last Updated: Saturday, December 21, 2013, 14:11

Photographs obtained from Curiosity`s robotic arm-mounted Mars Hand Lens Imager have shown marked wear and tear on the rover`s front left wheel.

Van Allen probes resolve mystery in Earth`s upper atmosphere

Last Updated: Saturday, December 21, 2013, 13:53

Researchers have claimed to have resolved decades of scientific controversy over the origin of the extremely energetic particles known as ultra-relativistic electrons in the Earth`s near-space environment.

Why some stars are bigger than others

Last Updated: Saturday, December 21, 2013, 13:49

Astronomers have used the Atacama Large Millimeter/submillimeter Array (ALMA) telescope to survey the cores of some of the darkest, coldest, and densest clouds in Milky Way galaxy to search for the telltale signs of star formation.

China launches communication satellite for Bolivia

Last Updated: Saturday, December 21, 2013, 09:57

China successfully sent a Bolivian communications satellite into orbit with its Long March-3B carrier rocket from southwest Xichang Satellite Launch Centre early Saturday, Xinhua reported.

Winter Solstice 2013: December 21 is the shortest day

Last Updated: Saturday, December 21, 2013, 09:55

The official onset of winter has begun as the winter solstice this year falls on December 21 thereby making it the shortest day and the longest night of the year in the northern hemisphere.

New technique to measure mass of exoplanets

Last Updated: Friday, December 20, 2013, 20:16

MIT scientists have developed a new technique to measure the mass of exoplanets, which can help determine if any of these far-off worlds are habitable.