A German satellite the size of a car re-entered the Earth's atmosphere early Sunday, officials said, adding they did not know yet if any debris had hit the Earth.
Space Exploration
Oct 23, 2011
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(PhysOrg.com) -- Mission managers for NASA's Dawn spacecraft are studying the spacecraft's ion propulsion system after Dawn experienced a loss of thrust on June 27. Dawn team members were able to trace the episode to an electronic ...
Space Exploration
Jul 8, 2011
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A NASA satellite that aimed to study the impact of aerosols on climate plunged into the Pacific Ocean on Friday, delivering a $424-million blow to the US space agency.
Space Exploration
Mar 3, 2011
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Space launches have evoked the same image for decades: bright orange flames exploding beneath a rocket as it lifts, hovers and takes off into the sky. But an alternative propulsion system proposed by some researchers could ...
Space Exploration
Jan 21, 2011
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Unmanned blimps or balloons flying for thousands of kilometers could offer a bird’s eye view of planets and moons.
Space Exploration
May 13, 2010
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Right now, 10 to 15 Rubik's Cube-sized satellites are orbiting high above Earth. Known as cube satellites, or "CubeSats," the devices help researchers conduct simple space observations and measure characteristics of Earth’s ...
Space Exploration
Feb 3, 2010
11
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The Naval Research Laboratory's Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle (UAV), has flown 26 hours and 1 minute carrying a 5-pound payload, setting another unofficial flight endurance record for a fuel-cell ...
Energy & Green Tech
Nov 30, 2009
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Direct communication between Earth and Mars can be strongly disturbed and even blocked by the Sun for weeks at a time, cutting off any future human mission to the Red Planet. An ESA engineer working with engineers in the ...
Space Exploration
Oct 16, 2009
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The Naval Research Laboratory's Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle (UAV), has flown 23 hours and 17 minutes, setting an unofficial flight endurance record for a fuel-cell powered flight.
Energy & Green Tech
Oct 13, 2009
2
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"We and the cosmos are one. The cosmos is a vast body, of which we are still parts. …It is a vital power rippling exquisitely through us all the time." D.H. Lawrence*
Astronomy
Aug 20, 2009
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