Astronomers at the University of Chicago, MIT and elsewhere have used a massive cluster of galaxies as an X-ray magnifying glass to peer back in time, to nearly 9.4 billion years ago. In the process, ...
A newly discovered cluster-scale strong gravitational lens, with a rare alignment of seven background lensed galaxies, provides a unique opportunity to study cosmology. In a rare and extraordinary ...
On September 7, 1674, Antonie Van Leeuwenhoek, a fabric seller living just south of The Hague, Netherlands, burst forth from scientific obscurity with a letter to London’s Royal Society detailing an ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback