07 December 2016
Dark matter not as clumpy as previously thought
... made of an effect known as cosmic shear. Cosmic shear is the distortion of images of distant galaxies due to weak gravitational lensing – the bending of light by gravity – by the large-scale structure in the Universe. "This latest result indicates...
04 August 2017
Most accurate measurement of Universe's dark matter revealed by DES survey
... guide to spotting dark matter in the cosmos by firstly creating maps of galaxy positions as tracers and then using gravitational lensing to map galaxy shapes over time. "It is amazing that the team has managed to achieve such precision from...
07 April 2021
Astronomers find a rare pair of double quasars in the early Universe
... of single quasars could have been observed instead of a pair of quasars. This would occur due to a phenomena known as gravitational lensing, and it happens when an intervening massive galaxy distorts and splits the light from a distant object, often...
26 April 2016
Professor Joshua Frieman elected to the American Academy of Arts and Sciences
.... Frieman’s primary research focuses on theoretical and observational cosmology, including studies of the early universe and gravitational lensing to probe the distribution of mass on galaxy and cluster scales. With the aid of the SDSS-II Supernova...
29 April 2018
Mission to Methone
... repetitious in its reminders of what has gone before. Then, six pages from the end, we get a lecture on gravitational lensing! This would be better left to the existing ‘Afterword’, which explains some of the physics behind the book...
