Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

Sarah Dalessi, a fifth-year student in the College of Science at The University of Alabama in Huntsville (UAH), a part of The ...