Two opposing teams battle it out to regulate gene expression on the DNA playing field. One, the activators, keeps DNA open to enzymes that transcribe DNA into RNA. Their repressor opponents antagonize that effort by twisting ...
Cell & Microbiology
Aug 26, 2012
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10:32 p.m. on the evening of Aug. 5 was turning out to be one long minute for Steve Sell. Of course, the previous six had been significantly protracted as well. When added together, the entry, descent and landing of NASA's ...
Space Exploration
Aug 22, 2012
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(Phys.org) -- NASA's Mars rover Curiosity flexed its robotic arm today for the first time since before launch in November 2011.
Space Exploration
Aug 21, 2012
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(Phys.org) -- In a carefully choreographed maneuver high in the sky above Mars, two man-made spacecraft zipped past each other as NASA scientists and engineers stared at screens inside Mission Control at NASA's Jet Propulsion ...
Space Exploration
Aug 7, 2012
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(Phys.org) -- Six days before reaching Mars, NASA's Mars Science Laboratory spacecraft performed a flight-path adjustment scheduled more than nine months ago.
Space Exploration
Jul 30, 2012
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On Tuesday, Apple is set to report financial results for the second quarter. Analysts are expecting net income of $9.8 billion. But whatever figure Apple reports won't reflect its true profit, because the company hides some ...
Business
Jul 23, 2012
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(Phys.org) -- NASA's Mars Odyssey orbiter experienced about 21 hours in a reduced-activity precautionary status ending at about 10 a.m. PDT (1 p.m. EDT) on Thursday, July 12.
Space Exploration
Jul 16, 2012
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(Phys.org) -- A maneuver on Tuesday adjusted the flight path of NASA's Mars Science Laboratory spacecraft for delivering the rover Curiosity to a landing target beside a Martian mountain.
Space Exploration
Jun 27, 2012
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A first-of-its-kind commercial supply ship rocketed toward the International Space Station following a successful liftoff early Tuesday, opening a new era of dollar-driven spaceflight.
Space Exploration
May 22, 2012
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(AP) -- The first private spaceship is headed to the International Space Station. Some questions and answers about the cargo mission by Space Exploration Technologies, known as SpaceX:
Space Exploration
May 22, 2012
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