The European sun-chasing spacecraft Solar Orbiter has snapped the closest images of the sun ever taken, revealing the finest details of our star’s outer atmosphere, the corona.
Astronomers imaged a weird circle in space in high-definition for the first time as they try to figure out how these mysterious structures form.
Known as “odd radio circles” (ORCs), the enigmatic shapes were first spotted in 2019 in images from the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope. Consisting of 36 colossal dishes located in Western Australia, ASKAP images the entire night sky in radio waves, began seeing circles in various spots.