We now have the ability to detect...possibly...planets in other galaxies. That's just an unimaginable distance away.
The possible exoplanet is in Messier 51 (M51), also known as the Whirlpool Galaxy. It's 28 million light years away.
It was discovered using one of our first techniques for detecting exoplanets, by detecting its slight occlusion of its sun. The reason we can see out this far is by using X-ray astronomy.
If it's real, it's a very large gas giant...
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