Astronomers have discovered faint plumes extending from the northeast and south of the nearby spiral galaxy M51a, also called the ‘Whirlpool Galaxy,’ by taking what is essentially a photograph made by a 20-hour exposure.
Astronomers have discovered faint plumes extending from the northeast and south of the nearby spiral galaxy M51a, also called the ‘Whirlpool Galaxy,’ by taking what is essentially a photograph made by a 20-hour exposure.