NASA is marking a major step in assembling the Space Shuttle for
its Return to Flight mission. Last week, workers successfully
"mated," or attached, the redesigned External Tank and twin Solid
Rocket Boosters (SRBs). The fuel tank and booster rockets will help
launch Space Shuttle Discovery on its mission to the International
Space Station, currently targeted for May 15-June 3.
Three Days' Driving Goes Farther Than 70 Days In The Past
On three consecutive days, NASA's Mars Exploration Rover
Opportunity accomplished unprecedented feats of martian motion,
covering more total ground in that period than either Opportunity
or its twin, Spirit, did in their first 70 days on Mars.
How do you hide something as big and bright as a galaxy? You
smother it in cosmic dust. NASA's Spitzer Space Telescope saw
through such dust to uncover a hidden population of monstrously
bright galaxies approximately 11 billion light-years away.
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