NuSTAR
NuSTAR is a telescope launched into space by NASA in 2012. It is the eleventh satellite in the "Small Explorer" program. Telescopes in space can see much better than on Earth, because the telescopes on Earth need to look through the atmosphere.
NuSTAR measures high-energy X-rays, which have a much higher frequency than visible light. It uses special optical devices to do this, so it works differently from a normal telescope. This type of telescope is called a Wolter telescope.[1]
NuSTAR is searching for black holes. It is also looking at supernovae to help understand how the chemical elements are created.[1] One of the first discoveries made by NuSTAR, along with another space telescope called XMM-Newton, was to measure the spin rate of a supermassive black hole for the first time.[2]
Further reading
change- "Nuclear Spectroscopic Telescope Array, or NuSTAR" (PDF). June 2012. Retrieved 15 August 2013.
- NuSTAR website at NASA. Archived 2013-09-10 at the Wayback Machine
References
change- ↑ 1.0 1.1 About NuSTAR: The Nuclear Spectroscopic Telescope Array
- ↑ "NASA's NuSTAR Helps Solve Riddle of Black Hole Spin" (Press release). Whitney Clavin, NASA. 27 February 2013. Archived from the original on 3 December 2017. Retrieved 3 March 2013.