News tagged with gravitational lensing

'Cosmic mirages' confirm accelerated cosmic expansion

(Phys.org) -- An international team of researchers led by Masamune Oguri at Kavli IPMU and Naohisa Inada at Nara National College of Technology conduced an unprecedented survey of gravitationally lensed quasars, ...

Apr 11, 2012
4.9 / 5 (9) 20 | with audio podcast

Lensed galaxies

In 1915, Einstein amazed the world by predicting that the path of light could be bent by mass. As a consequence, light from a distant galaxy passing by an intervening galaxy en route to earth will be distorted. ...

Nov 12, 2010
4.3 / 5 (12) 11 | with audio podcast

What is gravitational lensing? (w/ Video)

Everyone here is familiar with the practical applications of gravity. If not just from exposure to Loony Tunes, with an abundance of scenes with an anthropomorphized coyote being hurled at the ground from ...

Feb 06, 2015
5 / 5 (6) 0

Astronomical measurements must account for gravity

One of the consequences of general relativity is that light can be deflected by nearby masses. Mass curves space, and this curvature causes light to bend slightly. It was first observed during a total eclipse ...

Sep 25, 2014
4.6 / 5 (17) 24

Image: Magnifying the distant universe

(Phys.org) —Galaxy clusters are some of the most massive structures that can be found in the Universe—large groups of galaxies bound together by gravity. This image from the NASA/ESA Hubble Space Telescope ...

Apr 01, 2014
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Image: Gravitational lensing in galaxy YGKOW G1

(Phys.org) —In this new Hubble image two objects are clearly visible, shining brightly. When they were first discovered in 1979, they were thought to be separate objects—however, astronomers soon realized ...

Jan 27, 2014
4.8 / 5 (9) 1

Another amazing ALMA result

Observations with the Atacama Large Millimeter/submillimeter Array (ALMA) have revealed some of the most distant and actively star forming galaxies in our universe, thanks to an effect called gravitational lensing, which ...

May 30, 2013
4 / 5 (1) 4