They have found signs of what might be the first planet discovered outside the Milky Way

  • Paul Rinkon
  • BBC News Science Editor

X-ray binary drawing

Image source, ESO / L. Pavement


The invention develops from an X-ray binary: a black hole that separates gas from a neutron star or a sub-star.

Astronomers are right, this is the first planet discovered outside our galaxy.

To date, about 5,000 “exoplanets” have been identified – defined as worlds orbiting stars other than our Sun – but they are all located within our Milky Way galaxy.

The planet’s possible signal detected by NASA’s Chandra X – ray telescope is located in the Messier 51 galaxy, about 28 million light – years away.

This invention is based on the so-called transport The orbit of a planet in front of a star blocks a portion of the star’s light and causes a certain decrease in its brightness Detectable by telescope.

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