Dark Matter
6 reportsThe research story of Dark Matter is traced through gravitational lensing and cosmic structure, with separate attention to direct-detection searches. To distinguish observation from inference, reporting sets instrument calibration beside population statistics in the discussion of cosmic structure; the conclusion remains provisional because selection effects and uncertain source distances can alter inferred rates or energies.
NASA Prepares Roman Space Telescope for Early Launch to L2 Orbit
NASA's Nancy Grace Roman Space Telescope is set for launch on August 30, aiming to deliver wide-field infrared surveys and exoplanet imaging from a stable orbit beyond the Moon
Dwarf Galaxy DF9 Found Without Dark Matter After Cosmic Collision
Astronomers using the Keck Cosmic Web Imager have identified a faint dwarf galaxy, DF9, that appears to lack dark matter, supporting the idea that galactic collisions can separate dark and visible matter
NASA Prepares Roman Space Telescope for 2026 Launch to L2 Orbit
NASA has fueled the Roman Space Telescope, a next-generation infrared observatory scheduled for launch in August 2026, aiming to collect hundreds of terabytes of cosmic data annually and expand studies of dark matter, dark energy, and exoplanets
Ejected Matter May Account for Universe's Missing Baryons
Researchers analyzing intergalactic space have identified a significant fraction of the universe's missing ordinary matter, suggesting that violent galactic outflows may have expelled it beyond galaxies' boundaries
Webb Telescope Reveals Merging Young Galaxy Cluster 4.4 Billion Light-Years Away
NASA's James Webb Space Telescope has imaged the galaxy cluster MACS J0553.4-3342 as it appeared 4.4 billion years ago, capturing two massive sub-clusters in the process of merging and highlighting the gravitational effects shaping distant galaxies
Dark Matter Theory Links Hidden Dimensions to Cosmic Structure
A new theoretical study explores whether dark matter's elusive nature could be explained by its interaction with a hidden fifth dimension, offering a possible connection between two of physics' most persistent mysteries