Possible Planet Found in Whirlpool Galaxy (M51)

Using the change in brightness of an X-ray binary found in observations from two X-ray telescopes, scientists may have found an extragalactic planet.

CREDIT: X-ray: NASA/CXC/SAO/R. DiStefano, et al.; Optical: NASA/ESA/STScI/Grendler; Illustration: NASA/CXC/M.Weiss

Scientists using the ESA’s XMM-Newton and NASA’s Chandra X-ray telescopes may have found a planet in another galaxy. Not surprisingly…