Home » today » Technology » A spectacular new map of the world of high energies A spectacular new map of the world of high energies June 29, 2020 by world today news The eRosita space telescope has just unveiled its first survey of X-ray sources from the whole sky. –The entire sky seen in X-rays. Crédit : Jeremy Sanders, Hermann Brunner and the eSASS team (MPE); Eugene Churazov, Marat Gilfanov (on behalf of IKI) Our eye perceives only a tiny part of the whole extent of the light spectrum. We are only sensitive to photons included in a certain range of energies, going from red to purple (passing through yellow, green or blue). There is, however, a plethora of invisible photons, including those that are less energetic, starting with infrared, before descending into the microwave, then radio (which breaks down into millimeter, then centimeter, decimetric, metric waves, etc.). All these photons are emitted by “cold” matter. Conversely, there is a whole range of more energetic photons beyond violet: ultraviolet, then X-rays and finally gamma rays. These more energetic grains are emitted, you will understand, by “hot” events. The Sun emits a little, but most of its activity is centered in the visible (this is no coincidence: our eye is adapted to the light of our star). For astronomers, look This article is for subscribers only. You still have 89% to discover. Subscribe: € 1 the first month Cancelable at any time —– . Related posts:Know the planets to explore and the arsenal to use in Ratchet and Clank: Rift ApartDead porpoises carried dangerous bacteria | InlandWorld of Warcraft's Dragonflight alpha kicks off today as Blizzard lifts the lid on Dragon IslandsPorsche European Open: Li and Lagergren leadShare this:FacebookX Related Xbox Series S: Lockhart project to be unveiled in August – News Already Champion of the English League, Liverpool Still Want to Destroy Man City Page all Leave a Comment Cancel replyCommentName Email Website Save my name, email, and website in this browser for the next time I comment. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed. Search for: