Tag Archive for 'Sterile neutrino'

This illustration shows three steps Professor Riess and co-authors used to measure the Hubble constant to an unprecedented accuracy, reducing the total uncertainty to 2.3%. Image credit: NASA / ESA / A. Field, STScI / A. Riess, STScI & JHU.

Hubble Measures Universe Expansion, Gets Intriguing Hints of ‘New Physics’

Mar 12, 2018 by News Staff

A team of U.S. astronomers has used the NASA/ESA Hubble Space Telescope to make a new measurement of the Hubble constant, the rate at which the Universe...

This Hubble composite image shows a ring of dark matter in the galaxy cluster ZwCl0024+1652; the ring-like structure is evident in the blue map of the cluster's dark matter distribution; the map is superimposed on a Hubble image of the cluster. Image credit: NASA / ESA / M.J. Jee and H. Ford, Johns Hopkins University.

X-Ray Signal from Andromeda, Other Galaxies Could Be Evidence of Dark Matter

Dec 12, 2014 by News Staff

European scientists have detected a mysterious photon emission in X-ray spectra of the Andromeda galaxy, the Draco dwarf galaxy and some other galaxies...