Princeton satellite successfully heads to the 'edge of space' to study the early universe
Wednesday, January 7, 2015 - 07:00
in Astronomy & Space
(Phys.org) —With a noise like giant flags billowing in the wind, the massive white helium balloon rose into the air and carried SPIDER, a telescope designed to investigate the origin of the universe, high above Antarctica. The successful Jan. 1 launch signaled the beginning of a roughly 20-day mission above the continent.