Space breakthrough: Astronomers detect first-ever signs of a planet in another galaxy

When a planet transits a star, a space telescope like NASA’s TESS can monitor the resulting dip in brightness.

In this case, however, the astronomers observed an X-ray transit.

The binary system is emitting X-rays out into space, which suggests its black hole or neutron star is in the process of consuming a nearby star.

And something appears to be temporarily blotting out the X-rays for about three hours, which could be a planet passing between us and the binary.

However, the researchers acknowledge more work will need to be done before any conclusions are drawn.


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