PBS3 年
Two Types of Telescopes
When white light passes through a curved lens it ... This was the first working reflecting telescope. Other designers proved unable to grind mirrors with a regular curvature, so the reflector ...
来自MSN22 天
Hubble Telescope sees rare supernova explosion as a violent 'pale blue dot' (image)
The best Hubble Space Telescope images of all time! Supernovas occur when stars grow old, then collapse and explode. SN 2024PI is special because it's classified as a Type Ia supernova. A white ...
The Washington Post26 天
A rare look at NASA’s next sharp-eyed space telescope
The telescope will be roughly the size of the Hubble ... In the Clean Room the workers are pretty much indistinguishable. Everyone wears white gowns, white hoods, white booties, white surgical ...