AaronW - Slashdot User

Submission + - 3mm Inexpensive Chip Revolutionizes Electron Accelerators (natmonitor.com) 1

Submitted by AaronW on Sunday September 29, 2013 @03:27PM

AaronW writes: Scientists and engineers at the US DOE SLAC National Accelerator Laboratory and Stanford University have discovered an advanced accelerator technology smaller than a grain of rice. It is currently accelerating electrons at 300 million volts per meter with a goal of achieving 1 billion EV per meter. It could do in 100 feet what the SLAC linear accelerator does in two miles and could achieve a million more electron pulses per second. This could lead to more compact accelerators and X-ray devices.

Submission + - Earth May Once Had Two Moons (space.com)

Submitted by AaronW on Wednesday August 03, 2011 @02:15PM

AaronW writes: According to a story at space.com, Earth may once have had two moons. The smaller moon, estimated to be 750 miles (1200km) wide and only 4% of the mass of the larger moon, crashed into the far side of the larger moon which caused the features we see today on the moon. The surface of the far side of the moon is quite different than the side facing the earth, having a different composition and a much rougher terrain.

Submission + - Moon Rock from Apollo 11 Sent Back Into Space

Submitted by

AaronW

on Monday July 20, 2009 @06:26PM

AaronW writes: "According to this article at collectspace.com, a rock collected by Neil Armstrong during the Apollo 11 mission was quietly sent up to the ISS back in March. It was sent up in a special case to protect it with instructions given to the astronauts to not open it. Contamination isn't a huge issue since the rock sample had already been exposed to the air and was not that remarkable, resembling Hawaiian lava. It will be revealed tonight for a 40th anniversary celebration at the National Air and Space Museum in Washington DC."

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