Sunita Williams in space: 10 months of experiments, spacewalks, and more in pictures
Researchers are testing the European Enhanced Exploration Exercise Device (E4D), a compact, modular system combining cycling, ...
PBS1 年
The Experiments
In 1942, Sigmund Rascher and others conducted high-altitude experiments on prisoners at Dachau. Eager to find out how best to save German pilots forced to eject at high altitude, they placed ...
A private US company lands on the moon, delivering experiments for NASA
CAPE CANAVERAL, Fla. (AP) — A private US company lands on the moon, delivering experiments for NASA.
National Geographic news4 年
Teach your kids to be expert fact-checkers.
The photographer first took pictures of a person wearing goggles ... Check out even more experiments, including one that shows you how to make a squishy-shelled egg.