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James Webb telescope discovers rare ring galaxy and 'intruder' 2 billion years after the Big BangAstronomers using the James Webb Space Telescope have observed a galaxy with a ring of newborn stars as it appeared 2.1 billion years after the Big Bang — hinting that the early universe may have been more chaotic than once thought.
cosmology -
New simulation shows the first 2 billion years of the universe's history play out in stunning detailA new program aims to help scientists figure out how the ingredients of the universe formed early galaxies, which lit up the cosmos after a "dark age."
2 Commentscosmology -
A neglected particle from the dawn of time could explain why everything in the universe existsA hypothetical particle could have briefly held more energy than everything else in the infant universe combined, which could help explain how matter won out over antimatter.
particle-physics -
The James Webb telescope is watching one of the earliest supernovas in the universe unfoldAstronomers using the James Webb Space Telescope may have discovered a supernova erupting just 1.1 billion years after the Big Bang.
cosmology -
Scientists recreate the universe's first moments and find something they didn't expectA particle collider experiment just revealed something unexpected about how the fiery soup of particles that filled the universe after the Big Bang coalesced into the protons and neutrons that make up matter today.
4 Commentsparticle-physics -
Was there a 'before' the Big Bang? Jim Al-Khalili on the mind-bogglingness of timeBook excerpt In this excerpt from "On Time: The Physics That Makes the Universe Tick," author and theoretical physicist Jim Al-Khalili examines the possibility of time starting before the Big Bang, with the cosmological theory of eternal inflation.
Book excerpt -
Physicist demonstrates a key theory of time by building a 'mini-universe' in his labBy ignoring part of his own experiment, a physicist coaxed time to emerge from within a closed quantum system.
physics-mathematics -
New tweak to Einstein's relativity could transform our understanding of the Big BangA new physics paper proposes modifications to Einstein’s theory of relativity that could solve one of the biggest issues about our understanding of the Big Bang.
6 Commentsphysics-mathematics -
'Interstellar messenger' 3I/ATLAS could be nearly as old as the universe itself, James Webb telescope observations revealThe comet formed in a cold and distant part of the early Milky Way up to 12 billion years ago, potentially putting it just under 2 billion years the age of the universe.
2 Commentscomets
