Whirlpool Galaxy - Wikipedia
In September 2020, the detection by the Chandra X-ray Observatory [38] of a candidate exoplanet, named M51-ULS-1b, orbiting the high-mass X-ray binary M51-ULS-1 in this galaxy was announced. If confirmed, it would be the first known instance of an extragalactic planet, a planet outside the Milky Way Galaxy.
First Evidence of a Planet Identified Beyond Our Galaxy
Oct 25, 2021 · Astronomers have found evidence for a possible planet candidate in the M51 ("Whirlpool") galaxy, potentially representing what would be the first planet seen to transit a star outside of the Milky Way.
Astronomers may have found the first known extragalactic ...
Oct 25, 2021 · Astronomers may have spotted the first known planet in another galaxy. The potential world, called M51-ULS-1b, orbits both a massive star and a dead star in the Whirlpool galaxy, about 28 million...
In an Astonishing Feat, Astronomers Present Evidence of an ...
Oct 25, 2021 · The researchers have dubbed this extroplanet M51-ULS-1b, and its discovery could change the way we look for planets outside the Solar System – in the Milky Way, and beyond.
X-ray data reveal 1st-ever planet orbiting stars in another ...
Sep 29, 2020 · The planet has been labeled M51-ULS-1b, and is estimated to be slightly smaller than Saturn. It orbits its stars about 10 times the distance from Earth to the sun. It was first detected on...
Astronomers have found what may be the first exoplanet in ...
Oct 25, 2021 · The potential exoplanet, called M51-ULS-1b, lies 28 million light-years away in the spiral galaxy Messier 51 (M51), also known as the Whirlpool galaxy. This discovery could be just the tip of...
[2009.08987] M51-ULS-1b: The First Candidate for a Planet in ...
Sep 18, 2020 · M51-ULS-1b has a most probable radius slightly smaller than Saturn. It orbits one of the brightest XRSs in the external galaxy M51, the Whirlpool Galaxy, located 8.6 Megaparsecs from Earth. It is the first candidate for a planet in an external galaxy.