The galaxy cluster Abell 1689 is famous for the way it bends light in a phenomenon called gravitational lensing. Study of the cluster has revealed secrets about how dark energy shapes the universe. (Image: © NASA, ESA, E. Jullo (JPL/LAM), P. Natarajan (Yale) and J-P. Kneib (LAM)) A new studyContinue Reading
Here’s how the famous Iron Age ‘Heslington brain’ got preserved. Scientists are amazed that a human brain could persist for 2,600 years. (Image: © Axel Petzold/Journal of the Royal Society Interface) In 2008, archaeologists were stunned to discover a human brain dating to the Iron Age. The finding seemed toContinue Reading
The sharp images clearly show which buildings were reduced to ruin and rubble. A closeup of the wreckage at Iraq’s al-Asad airbase, as captured on Jan. 8, 2020, by one of Planet’s SkySat satellites. (Image: © Planet Labs Inc.) You don’t have to be on the ground in Iraq toContinue Reading
The flashy abdomens of male peacock spiders may serve a very important purpose. This design on the abdomen of a peacock spider resembles the face of a mantis. Do you see it? (Image: © Jurgen Otto) AUSTIN, Texas — Male peacock spiders have the ultimate challenge to contend with whenContinue Reading