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Nelson was peering at a postage stamp-sized section of one image when she spotted something strange: a few “fuzzy dots” of light that looked way too bright to be real.
“They were so red and so bright,” Nelson said. “We weren’t expecting to see them.”
She explained that in astronomy, red light usually equals old light. The universe, Nelson said, has been expanding since the dawn of time. As it expands, galaxies and other celestial objects move farther apart, and the light they emit stretches out—think of it like the cosmic equivalent of saltwater taffy. The more the light stretches, the redder it looks to human instruments. (Light from objects coming closer to Earth, in contrast, looks bluer).
The team ran calculations and discovered that their old galaxies were also huge, harboring tens to hundreds of billions of sun-sized stars worth of mass, on par with the Milky Way.
These primordial galaxies, however, probably didn’t have much in common with our own.
“The Milky Way forms about one to two new star every year,” Nelson said. “Some of these galaxies would have to be forming hundreds of new stars a year for the entire history of the universe.”
Nelson and her colleagues want to use James Webb to collect a lot more information about these mysterious objects, but they’ve seen enough already to pique their curiosity. For a start, calculations suggest there shouldn’t have been enough normal matter—the kind that makes up planets and human bodies—at that time to form so many stars so quickly.
www.sciencedaily.com...
originally posted by: nerbot
What if they were from somewhere else's Big Bang?
Our "understanding" of the universe has never been set in stone anyway.
originally posted by: gortex
...more work needs to be done to make sure the Galaxies are actually Galaxies and not just Super Massive Black Holes or something more exotic but if confirmed our understanding of the Universe wouldn't be as set in stone as some might think.
Ummm... you think our current level of understanding of the nature of the universe is anywhere even remoetly near 'set in stone'???
originally posted by: gortex
a reply to: Framesend
As I understand it they can tell the distance from the light we receive , light that has traveled a long distance gets stretched as it travels shifting it to the red end of the spectrum , I guess complex math takes over from there.
originally posted by: Spacespider
Perhaps we just need better glasses, perhaps there is no end.