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Kentucker
Kentucky Fan
Cincinnati, KY
Member since Apr 2013
16957 posts

Astronomers spot 1st moon-forming disk around an alien world
Sort of self-explanatory but remarkable because the pic was taken by a telescope in Chile. If all goes well and the James Webb Space Telescope begins operations at Lagrange Point 2, we’re likely to be able to see the atmospheres of exoplanets nearby. We should be able to determine if they’re life-supporting very soon.

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Our moon is considered to be critical in the origin and maintenance of life on earth because of its role in stabilizing the planet’s tilt. This gives us distinct and predictable seasons. We may soon know how prevalent moons are around earth-sized planets.

quote:

Astronomers have discovered the first disk surrounding a planet outside the solar system.

The impressive circumplanetary disk is about 500 times larger than Saturn's rings and encircles a Jupiter-like planet dubbed PDS 70c. Scientists have seen plenty of disks surrounding distant stars, and moon-forming disks around planets like this have been suspected before, but this is the first time such a system has been definitively identified, according to the researchers.


johnzorback
Arkansas Fan
Member since Apr 2012
3956 posts

re: Astronomers spot 1st moon-forming disk around an alien world
Can't wait. I'm still not sure why the calibration missions are on Jupiter for the JWST, other than it eventually becoming a brown dwarf.


Kentucker
Kentucky Fan
Cincinnati, KY
Member since Apr 2013
16957 posts

re: Astronomers spot 1st moon-forming disk around an alien world
NASA.gov says

quote:

"It will be a really challenging experiment," said de Pater. "Jupiter is so bright, and Webb's instruments are so sensitive, that observing both the bright planet and its fainter rings and moons will be an excellent test of how to get the most out of Webb's innovative technology."


Pepperoni
US Space Force Fan
Not in fear
Member since Aug 2013
1582 posts

re: Astronomers spot 1st moon-forming disk around an alien world
That's amazing resolution


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awestruck
Auburn Fan
Member since Jan 2015
8180 posts

re: Astronomers spot 1st moon-forming disk around an alien world
It's only alien if your not from the neighborhood. ... ya peeping Tom.


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johnzorback
Arkansas Fan
Member since Apr 2012
3956 posts

re: Astronomers spot 1st moon-forming disk around an alien world
quote:

"Jupiter is so bright, and Webb's instruments are so sensitive, that observing both the bright planet and its fainter rings and moons will be an excellent test of how to get the most out of Webb's innovative technology."

What were the alternatives?


Kentucker
Kentucky Fan
Cincinnati, KY
Member since Apr 2013
16957 posts

re: Astronomers spot 1st moon-forming disk around an alien world
Don’t know. Maybe Uranus and its rings, or Neptune. Needed something with adjoining bright and dim objects.apparently.


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Kentucker
Kentucky Fan
Cincinnati, KY
Member since Apr 2013
16957 posts

re: Astronomers spot 1st moon-forming disk around an alien world
quote:

That's amazing resolution


And it’s from a ground-based scope. The JWSt and Europe’s Extremely Large Telescope, also to be located in Chile, should give us info about habitable exoplanets within the next two years.


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