April 18 2023 - Scientists are worried

 

They are worried that the galaxies they keep finding with the James Webb Space Telescope shouldn't exist.  The scientist warned us.  The galaxies were as mature as our own Milky Way and they come from the beginnings of the universe.   There's billions of celestial objects - sounds like an overwhelming panic. And worse: We may be missing some fundamental information about the universe.  Galaxy formation is under the "microscope". There might be something wrong with the dark energy and cold dark matter paradigm that has been guiding cosmology for decades.  Just how do you go about changing your understanding of the cosmos and how galaxies grow?  That's an exciting proposition. Other headlines?   Why do some James Webb Space Telescope images show warped and repeated galaxies?  Does the sun really belong in its family? Astronomers get to the bottom of stellar identity crisis There's a lot going on in this field.   It's a train day today. Read more daily posts here: marilyncornwellblogspot.com Purchase works here: Fine Art America- marilyncornwell.com Redbubble - marilyncornwellart.ca

Feb 24 2023 - Astronomy News

 

There is continuing news from scientific astronomers because of the James Webb Space Telescope.  And it is good news always.  The headlines usually start with "James Webb Telescope's latest marvels" or  "James Webb is about to take us to the 'edge of time'"with massive galaxies discovered near cosmic dawn.  They call this "universe breakers".   Can you imagine the excitement - they could be rewriting astronomy textbooks soon.   "An international team of astrophysicists has found six candidate galaxies hiding in data from the James Webb Space Telescope (JWST) that are so old and massive they can’t be explained by current cosmological models. The galaxies are thought to date back to around 500 million years after the Big Bang, more than 13 billion years ago. According to current cosmological models, galaxies at this point in time should be in their infancy and be made up of only a few stars. However, all six of the newly discovered candidate galaxies are gigantic and contain a similar number of stars to the modern-day Milky Way, which is much older." "...the team were able to date the candidate galaxies back to just over 13 billion years ago and determine that they contained tens to hundreds of billions of Sun-sized stars worth of mass. This means that they would’ve had to have formed stars at an astonishing rate due to their short lives." Read about it HERE. It brings to our attention the astonishing discovers that are happening in the world today. At the bottom of the article are more tantalizing headlines and their links.   I think it would be worth doing the work to be an amateur astronomer.  I expect it would take a lot of education - astronomy and physics. But then it would exciting every day to read the science news. The Bing political headlines  are doom and gloom stories and they never finish scrolling. We are astonishing in our coverage of all things negative.  On with science! Let's admire a Gerbera daisy today.  I think they are a close second to Dahlias in being photogenic.       Read more daily posts here: marilyncornwellblogspot.com Purchase works here: Fine Art America- marilyncornwellart.com Redbubble - marilyncornwellart.ca