地球上空的詹姆斯·韦伯太空望远镜
2021年12月26日 James Webb Space Telescope over Earth Image Credit: Arianespace, ESA, NASA, CSA, CNES Explanation: There’s a big new telescope in space. This one, the James Webb Space Telescope (JWST), not only has a mirror over five times larger than Hubble’s in area, but can see better in infrared light. The featured picture shows JWST high above t...