Latest JWST news.
Astronomers using the James Webb Space Telescope are finding too many early galaxies,
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Looks like the JWST is sending back some fantasic science but also getting us to re-write much about what we thought we knew about the early universe.
It has only been running fully for about 7 months and it has sent back more science, which is going to keep people busy for decades.
A great time to study #Astronomy.
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#Science,#Astronomy,#JWST,#Galaxies
This Massive Wall of Galaxies Is Lurking Beyond the Milky Way
Another interesting science post on the Fediverse.
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Cosmographers’ goal is to map out the observable universe, and from their findings we can not only learn more about the structures that make up everything we can see, we also gain insight into the things we cannot see!
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#Science,#Cosmology,#Astronomy,#Galaxies,SouthernHemisphere
Zooniverse latest 21/10/2022
Interested in helping astronomers classify pictures of distant galaxies from earlier in the Universe’s history? Check out the dawn of Galaxy Zoo’s newest iteration: Galaxy Zoo: Cosmic Dawn!
Galaxy Zoo is the most popular project on the Zooniverse, asking volunteers to classify images of galaxies based on their visual appearance. Galaxies have a variety of shapes, from ball-like ellipticals to those with grand spiral arms, so studying how they form and evolve over cosmic time requires classifying large numbers of them: that’s where you come in!
This week, Galaxy Zoo begins its latest incarnation, Galaxy Zoo: Cosmic Dawn, with tens of thousands of new galaxy images now available for you to help classify! These were taken by the Hyper Suprime-Cam (HSC) on board the 8.2m Subaru telescope on the summit of Mauna Kea in Hawaii, as part of the Hawaii Two-0 (H20) survey.
Compared to previous incarnations of Galaxy Zoo, H20 enables us to see fainter and more distant galaxies from earlier in the Universe's history. This deeper imaging also means we can observe many more distant galaxies in the same patch of sky, so the images you will see may often appear redder and blurrier than you might expect. H20 is a key component to the more ambitious Cosmic Dawn survey, aiming to push the boundaries of extragalactic astronomy by studying galaxy evolution out to a few hundred million years after the Big Bang!
There are also some rare types of galaxies that we don't want to miss, so make sure to check out the Tutorial!
James Pearson, Galaxy Zoo & H2O teams
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#CitizenScience,#Science,#Zooniverse,#Galaxies,#Early,#CosmicDawn,
#Astronomy
February STSCI lecture review
This months lecture Milky Way vs Andromeda: When galaxies collide. was really interesting, and covered material about how galaxies are formed, looking for life and what may happen when in 7 billion years, the Andromeda galaxy merges with our own, home galaxy.
The lecture also talked about how galaxies were first discovered and how, only in the last 100 years have we really started to learn a lot more about them. Why the two will merge is linked to the expansion of the universe.
Earth, of course, won't exist by then. The sun, being 4 billion years old, will have expanded to a red giant. As the duration of a 'main sequence star' is about 10 billion years (cite OU Open Learn The Sun)
So the lecture also included about how we could find earth 2.0, the fact that this. may not be easy given the time it will take to reach even the nearest start.
Proxima Centauri (4.2ly) and the planet around that isn't very hospitable.
Personal comment to add to this
I would guess it also raises the question if it will take 10's of 1000s of years to reach will it be the same or have developed to be more life friendly, then on the other side of that a planet that is life friendly now, may like the Earth not be so friendly i 1000's of years time.
Looking forward to the next lecture in March.
REFERENCES
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#YearOfTheFediverse,#galaxies,#space,#Telescope,#stsci,#Science,Physics,#Astronomy
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