Tag Archives: Galaxies

This story was provided by Live Science, a sister site of Space.com. Astronomers have discovered over a dozen “dormant” galaxies that paused their star formation within the first billion years after the Big Bang. The discovery, made with data from the James Webb Space Telescope (JWST), illuminates a fascinating phase in the lives of early galaxies and could provide more …

Astronomers have captured the first optical evidence of a million-light-year-long bridge of stars being torn from one massive galaxy and pulled into another, a rare galactic interaction occurring in the Abell 3667 galaxy cluster, located about 700 million light-years from Earth. The discovery, published August 5 in The Astrophysical Journal, reveals a dramatic cosmic merger between two galaxy clusters, each …

The James Webb Space Telescope has returned to the scene of one of the Hubble Space Telescope’s most iconic images, the Ultra Deep Field, to capture galaxies throughout cosmic history. This new image was taken as part of the JWST Advanced Deep Extragalactic Survey (JADES), which is intent on further probing in infrared light two patches of sky that were …

When you buy through links on our articles, Future and its syndication partners may earn a commission. (Main) an illustration of a black hole ripping apart an unfortunate star (Inset) the JWST which has just observed these events for the first time. | Credit: (Main) Carl Knox – OzGrav, ARC Centre of Excellence for Gravitational Wave Discovery, Swinburne University of …

Astronomers have exposed the James Webb Space Telescope (JWST) to its first glimpses of the universe’s most violent and gory events: stars being ripped apart and devoured by black holes. The powerful space telescope discovered the black holes involved in these stellar murders lay in wait, slumbering in dusty galaxies, until their victims approach. Using the James Webb Space Telescope …

Astronomers have discovered over a dozen “dormant” galaxies that paused their star formation within the first billion years after the Big Bang. The discovery, made with data from the James Webb Space Telescope (JWST), illuminates a fascinating phase in the lives of early galaxies and could provide more clues about how galaxies evolve. There are several reasons why galaxies may …

Our cosmic neighborhood may be far more crowded than previous estimates have suggested. New research hints the Milky Way could have many more small dwarf galaxy “satellites” around it than expected. The team, comprised of cosmologists from Durham University, combined supercomputer simulations with mathematical modeling to predict the existence of missing Milky Way “orphan” galaxies. The researchers’ novel technique suggests …

The Milky Way may be surrounded by dozens of yet-to-be-detected satellite galaxies, scientists claim. Using the highest-resolution simulation of our galaxy’s dark matter — an invisible entity that shapes the large-scale structure of the universe — and new mathematical models, cosmologists predict that more than 100 additional satellite galaxies beyond the ones already cataloged may be swirling around our own. …

The Lambda Cold Dark Matter (LCDM) theory suggests that most galaxies are low-mass dwarf galaxies, many of which orbit larger galaxies like the Milky Way. More broadly, the LCDM represents our best understanding of how the universe works. But there’s a problem. According to the theory, the Milky Way should have significantly more satellite galaxies than scientists have observed with …