ScienceDaily: Space & Time News

Researchers have conducted a 16-year long experiment to challenge Einstein's theory of general relativity. The international team looked to the stars - a pair of extreme stars called pulsars to be precise -- through seven radio telescopes across the globe. And they used them to challenge Einstein's most famous theory with some of the most rigorous tests yet. The study reveals new relativistic effects that, although expected, have now been observed for the first time.

A powerful cosmic burst dubbed AT2018cow, or 'the Cow,' was much faster and brighter than any stellar explosion astronomers had seen. They have now determined it was likely a product of a dying star that, in collapsing, gave birth to a compact object in the form of a black hole or neutron star.

Researchers found that while just three days of lying flat induced enough pressure to slightly alter the eyeball's shape, no such change occurred when the suction technology was used.