Scientists were able to make this discovery using NASA’s Chandra X-ray Observatory. Using specialized equipment, they observed weak X-rays in a planetary system where a Sun-like star orbits around a neutron star or black hole. In this way, scientists can determine:
- Planet sizes
- How far are the planets from their stars?
- Gather evidence of their components by analyzing the starlight that shines through the planet’s atmosphere.
The rest of the text is below the video.
Unique outer planet
So far, every possible exoplanet or exoplanet has been in our galaxy, the Milky Way. This means that almost all of them are less than three thousand. Light years from Earth.
An exoplanet that scientists found in a neighboring galaxy — known as M51 or “vortex galaxy” because of its distinctive shape — is likely about 28 million light-years away from Earth. The discovered planet may not be exactly the size of Saturn.
“Unfortunately, to confirm that we see the planet, we may have to wait decades to see another transit,” said astronomer Nia Imara of the University of California, Santa Cruz.
Scientists published information about the possible discovery in the latest issue of “Nature Astronomy”.
Of course, there must be planetary systems in other galaxies, but scientists cannot detect them using the same methods – our telescopes are not powerful enough.
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