Universumin syntyessä saattoi tapahtua kaksi alkuräjähdystä by Sakari Nummila
Uuden teorian mukaan pimeä aine saattoi syntyä vasta tavallisen aineen muodostumisen jälkeen. Kyseistä tapahtumaa voisi kutsua toiseksi, pimeäksi alkuräjähdykseksi.
The Economist, “Physicists are Reimagining Dark Matter.”
Readers of this paper will probably need no reminder that most of the universe is missing. The atoms and light you see—from people to planets, stars and galaxies—make up just 5% of the universe. The rest is a two-part mystery—a substance called “dark energy”, which pushes space apart, comprises 68% of the cosmos; what’s left, […]
Texas Academy of Medicine, Science, and Technology (TAMEST) Profile: Katherine Freese
TAMEST Member Katherine Freese, Ph.D. (NAS), The University of Texas at Austin, is a world-renowned theoretical astrophysicist who recently discovered a possible new type of star, powered by dark matter itself. Her team utilized data and images provided by the James Webb Space Telescope and found several objects that appear to be almost as old […]
French National Geographic, Des astrophysiciens pensent avoir repr des ”toiles noires” pour la premire fois — National Geographic
De potentielles étoiles noires ont été repérées dans les régions les plus reculées de l’univers jamais observées. Ces structures influencées par la matière noire seraient les plus anciens témoins des origines de notre univers.
Physics World: Dark Stars article by Sam Jarman
A trio of US astronomers has found compelling evidence for the existence of “dark stars” – hypothetical objects powered by the annihilation of dark matter. Dark stars could explain the unexpected abundance of ancient galaxies seen by the James Webb Space Telescope (JWST). Katherine Freese at the University of Texas, Austin along with Cosmin Ilie […]