Scientists at the Harvard-Smithsonian Center for Astrophysics believe they’ve discovered the first extragalactic planet ever observed by humans. Now that we’ve gotten that out of the way: An ...

This is the scientific process in action. Di Stefano's team have argued their case: M51-1 is an extragalactic planet. Now there's more work to do.

A research group is reporting the detection of extragalactic planet-mass objects in a second and third galaxy beyond the Milky Way after the first detection in 2018. With the existing ...

[Illustration of the extragalactic planet] "This is very exciting," said study co-author Rainer Klement of the Max-Planck-Institut fur Astronomie (MPIA) in Heidelberg, Germany.

The extragalactic planet is orbiting the X-ray binary data at a distance of twice the orbit of Saturn around the sun. The researchers believe that given the orbit of this possible planet, ...

Where are the cool new "extragalactic" planet photos? Are any of them Earth-like? And, ... And now you know, it's also powerful enough to find these extragalactic planets.

Now, however, a planet with a minimum mass 1.25 times that of Jupiter [2] has been discovered orbiting a star of extragalactic origin, even though the star now finds itself within our own galaxy.

Has science finally caught up to the suspected discovery of a planet outside of our own galaxy from five years ago? Gravitational microlensing may explain the mysteries behind a 2004 sighting of ...

A University of Oklahoma research group is reporting the detection of extragalactic planet-mass objects in a second and third galaxy beyond the Milky Way after the first detection in 2018. With ...

An extragalactic origin Last year, another research team announced it may have detected a planet in the Andromeda galaxy. However, that faraway find will be nearly impossible to confirm.

This story was updated at 2:57 p.m. ET. Astronomers have confirmed the first discovery of an alien planet in our Milky Way that came from another galaxy, they announced today (Nov. 18).