Hosted on MSN2mon
2 space telescope designs will battle it out to become NASA's next cosmic imager
actively controlled beam-steering mirrors called "two-axis focal-plane choppers." These are able to steer the light entering the telescope and reflecting off its 1.8-meter (5.9 feet) aluminum ...
The Washington Post28d
A rare look at NASA’s next sharp-eyed space telescope
The central feature of the telescope is an exquisitely polished, concave primary mirror, 2.4 meters (7.9 feet) in diameter. The primary mirror sits beneath a smaller, secondary mirror that ...