James Webb Space Telescope (2 Viewers)

The universe is massive, and Earth is located a long way away from the edge of our known universe.
That is yet another awesome thing - distinguishing between the universe and the known universe. The walk to the chemist's is peanuts to the known universe, but the known universe is peanuts to the whole universe.
 
The light from SPT-S J041839-4751.8 appears like an Einstein Ring because of a foreground galaxy that has bent the light from it. So, this new James Webb image of an Einstein Ring isn’t actually the galaxy that is creating the light. Instead, we simply see the light from that galaxy as it bends around the foreground galaxy..........




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Thanks, this is some real-world acid-trip stuff right here.
 
NASA released the first full-color images of our universe from James Webb in July. Since then, the space telescope has captured evidence of a supernova, carbon dioxide in an exoplanet’s atmosphere, and now James Webb has captured an image of a beautiful Einstein Ring........

An Einstein Ring is essentially when light from a galaxy or star passes another galaxy or a massive object en route to Earth. Because the large object’s gravity bends the light, it creates gravitational lensing. This creates a ring-life effect, making the galaxy’s light appear as a nearly perfect ring. In this new image, James Webb has captured the galaxy SPT-S J041839-4751.8.

The light from SPT-S J041839-4751.8 appears like an Einstein Ring because of a foreground galaxy that has bent the light from it. So, this new James Webb image of an Einstein Ring isn’t actually the galaxy that is creating the light. Instead, we simply see the light from that galaxy as it bends around the foreground galaxy..........


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If I understand this correctly, the bright middle is a galaxy. The ring around the middle is the light from a second galaxy behind the one in the middle and the ring is the light from the second galaxy bending around the one in front. Is this correct?
 
If I understand this correctly, the bright middle is a galaxy. The ring around the middle is the light from a second galaxy behind the one in the middle and the ring is the light from the second galaxy bending around the one in front. Is this correct?

That's how I understood it

I thought it was like shining a flashlight behind someone but instead of a glowing halo the massive gravity turns the light into the ring (insert fat joke here)
 
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On September 26, 2022, DART intentionally crashed into the asteroid moonlet called Dimorphos. It was a monumental triumph in science for NASA and anyone interested in astronomy. Using a spacecraft, DART could deflect an asteroid, changing its path. While this asteroid was no threat to Earth, it allowed the technology to be tested in case that ever becomes a problem.

And even though the asteroid was 7 million miles away, there were a lot of eyes on it from outer space — both the Hubble Telescope and the JWST observed the event. And now there are pictures. According to a NASA release, the observations from Hubble and JWST were an “operational milestone,” but the data collected will allow scientists to learn more about the history and makeup of our solar system............

 
“Go then, there are other worlds than these.”

Or so Stephen King wrote in his famous Dark Tower series.

As of yet, none of those worlds is known to be like Earth. But, according to some new simulations by researchers at the National Astronomical Observatory of Japan (NAOJ), finding a genuinely Earth-like world might be in the cards by the decade’s end.

Here’s the background — Searching for exoplanets has been dominated by what is commonly known as the “Goldilocks Zone.” In pop science, the Goldilocks Zone represents the distance a planet needs to be from its star to be “not too hot and not too cold,” as in the porridge from the classic English children’s story.

Some 5,000 exoplanet candidates have already been found in this zone. However, it is doubtful that any are true Earth analogs, as there is another crucial component of a planet being Earth-like that has nothing to do with its distance from its star. It must have just the right amount of water.

What’s new — Now, new research from Masahiro Ikoma and his students at NAOJ has simulated planetary formation around red dwarves and found that a small but noticeable percentage of these planets would likely contain water levels that would make them remarkably like Earth. In short, these exoplanets could potentially have beaches.

Admittedly, only a few percent of the planets that form in the Goldilocks zone around red dwarves would have this amount of water, at least according to the new models. But with the vast number of potential exoplanets to be found among these most common of stars, there are most likely going to be hundreds of them..........

 
I think I've read that planets around red dwarves would have other, more substantial obstacles to the formation of life. I think the planets would have to be in tidal lock and would suffer from extreme radiation (just my vague memory, so those might be wrong)
 
I think I've read that planets around red dwarves would have other, more substantial obstacles to the formation of life. I think the planets would have to be in tidal lock and would suffer from extreme radiation (just my vague memory, so those might be wrong)
Life finds a way.


They found a fungus in Chernobyl growing near the reactors where the radiation levels were suspected to prevent anything to live there.

 

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