"We Were Onto Something": Highest Resolution Radio Arc Shows The Lowest Mass Dark Object Yet
"We Were Onto Something": Highest Resolution Radio Arc Shows The Lowest Mass Dark Object YetAstronomers have broken two records in one thanks to an incredible serendipitous alignment of cosmic objects. It's the highest resolution detection of a gravitationally lensed radio arc, and within it, a small kink indicating the presence of a small gravitational mass – the smallest ever seen, creating...