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Jilly_in_VA

(9,964 posts)
Tue Oct 26, 2021, 11:05 AM Oct 2021

Signs of first planet found outside our galaxy

Astronomers have found hints of what could be the first planet ever to be discovered outside our galaxy.

Nearly 5,000 "exoplanets" - worlds orbiting stars beyond our Sun - have been found so far, but all of these have been located within the Milky Way galaxy.

The possible Saturn-sized planet discovered by Nasa's Chandra X-Ray Telescope is in the Messier 51 galaxy.

This is located some 28 million light-years away from the Milky Way.

This new result is based on transits, where the passage of a planet in front of a star blocks some of the star's light and yields a characteristic dip in brightness that can be detected by telescopes.

This general technique has already been used to find thousands of exoplanets.

https://www.bbc.com/news/science-environment-59044650
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Just because we can't see them does not mean they aren't there. Just because they haven't visited us doesn't mean they don't exist. We are an arrogant species.

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Signs of first planet found outside our galaxy (Original Post) Jilly_in_VA Oct 2021 OP
This message was self-deleted by its author Chin music Oct 2021 #1
Hooray! PoindexterOglethorpe Oct 2021 #2
Scientists estimate possibly 2 trillion Galaxies in our Universe. patphil Oct 2021 #3

Response to Jilly_in_VA (Original post)

patphil

(6,169 posts)
3. Scientists estimate possibly 2 trillion Galaxies in our Universe.
Tue Oct 26, 2021, 11:58 AM
Oct 2021

https://singularityhub.com/2021/01/15/how-many-galaxies-are-in-the-universe-a-new-answer-emerges-from-the-darkest-sky-ever-observed/

Add to that estimates that a Galaxy range in size from hundreds of billions to trillions of stars, it's incredibly arrogant to think we are the only planet with intelligent life.
In actuality, our Universe probably has billions of trillions of planets with intelligent life.

I sometimes wonder if other intelligent species would include us in that total.
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