Galactic Tranquility Jigsaw Puzzle

Galactic Tranquility: Supernovae are also a useful aid for astronomers who measure the distances to faraway galaxies. The amount of energy thrown out into space by supernova explosions is very uniform, allowing astronomers to estimate their distances from how bright they appear to be when viewed from Earth. This image - which was created using data from Hubble's Wide Field Camera 3 - comes from a large collection of Hubble observations of nearby galaxies which host supernovae as well as a pulsating class of stars known as Cepheid variables. Both Cepheids and supernovae are used to measure astronomical distances, and galaxies containing both objects provide useful natural laboratories where the two methods can be calibrated against one another. (ESA/Hubble & NASA, D. Jones, A. Riess et al. - https://esahubble.org/images/potw2202a/)The completed jigsaw puzzle is a beautiful poster. Made to deliver wholesome downtime for friends & family. Ships in gift-ready box for a show-stopping presentation.* Satin finish image sublimated on chipboard* Suitable for hanging and framing* 16 x 20 inches, 500 pieces