Tiny Telescope, Big Discoveries: How ExTrA Hunts for Earth-Like Worlds
Using clever light-detecting techniques, ExTrA searches red dwarf stars for planets that might support life. By studying tiny ...
Scientific American25 天
NASA’s Hubble Space Telescope Was Never Meant to Look at the Sun. Astronomers Tried It Anyway
A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...