X-ray telescope
Videos
An X-ray telescope is a telescope that is designed to observe remote objects in the X-ray spectrum. X-rays are absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high
Chandra X-ray Observatory, launched by NASA in 1999, is still operational as of 2024
Uhuru X-ray satellite
Photo of supernova remnant Cassiopeia A, taken by the first imaging X-ray telescope, Einstein Observatory.
One of the mirrors of XRISM made of 203 foils
Space telescope
Videos
A space telescope is a telescope in outer space used to observe astronomical objects. Suggested by Lyman Spitzer in 1946, the first operational telescopes were the American Orbiting Astronomical Obser
X-ray telescope
…energy photons require smaller incidence angles and therefore longer telescope designs. The limit in the early 2000s with Chandra and XMM-Newton X-ray observatories was about 15 kilo-electronvolt (keV) light. Using new multi-layered coated mirrors, the X-ray mirror for the NuSTAR telescope pushed this up to 79 keV…
Wavelength sensitivity of Hubble, Webb, Roman, and other major observatories
The Hubble Space Telescope, one of the Great Observatories
Kepler's Supernova observed in visible light, infrared, and X-rays by NASA's three Great Observatories
Aurora Space Shuttle EO