Engineers and technicians working on a new generation space telescope, the James Webb Telescope, complete critical tests on how the new instrument will perform in space.
NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) recently caught a glimpse of five of these secluded beasts. While hidden from view from most other telescopes, NuSTAR can spot them by detecting the highest-energy X-rays, which can penetrate through the enshrouding gas and dust.
Happy Birthday Hubble! NASA celebrates twenty five years of the Hubble Space telescope.