A halo of gamma-rays detected by the Fermi Space Telescope matches what would be expected if particles with masses around 500 ...
A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.
The new study reports the detection of a mysterious halo-like glow of gamma rays around the Milky Way, peaking sharply at ...
WASHINGTON (Reuters) - New data involving millions of galaxies and luminous galactic cores is providing fresh evidence that the enigmatic and invisible cosmic force called dark energy - ...
JWST NIRCam imaging of star-forming protocluster PHz G191.24+62.04, 11 billion years ago as the universe was approaching the peak of star formation. These early galaxies are among the most active star ...
lenses, which are seen when a galaxy bends the light from a distant quasar to form several images of the same quasar. Linking the number of lenses they found with the latest information on the numbers ...