New findings revise the Milky Way-Andromeda collision odds into a cosmic coin toss
The Milky Way and Andromeda have appeared locked on a destructive course for decades. Now, thousands of simulations…
Decades-Old Dark Matter Explanation Fails Its Most Direct Test Yet
A decades-old dark matter claim is facing a decisive new challenge. The result clears the way for future…
Organic molecules can survive violent supernova explosions – fueling star and planet formation
A supernova remnant is supposed to be a rough neighborhood for a newborn star. Shock waves rip through…
A cosmic gateway near Earth may connect us to other distant worlds
The solar system sits inside a vast pocket of hot, thin gas. However, that nearby structure has never…
New study reveals how dark matter formed shortly after the Big Bang
Dark matter may not have needed a calm, cold start to help build the universe. For decades, that…
JWST solves the mystery of the giant planet orbiting a dead star
A giant planet circling a dead star should not be there. That was the puzzle hanging over WD…
Nearby exoplanet just got more Earth-like and promising for life
GJ 3378b has moved closer to the kind of world astronomers most want to find: small, rocky, temperate,…
12 billion years old interstellar comet 3I/ATLAS may be older than the solar system
3I/ATLAS arrived fast, bright, and strange. When astronomers spotted it on July 1, 2025, they knew almost immediately…
Astronomers discover faint dwarf galaxy that seems to exist without dark matter
A faint dwarf galaxy drifting 45 million light-years from Earth may have joined one of astronomy’s strangest clubs.…
Detection of anisotropic cosmic structures on a gigaparsec scale
Weinberg, S. Cosmology (Oxford Univ. Press, 2008). Aghanim, N. et al. Planck 2018 results. V. CMB power spectra…
JWST Confirms Most Distant Gravitational Lens: Galaxy Cluster Defies Cosmic Formation Models
NASA’s James Webb Space Telescope has confirmed that a galaxy cluster 10.4 billion light-years away is the most…
Astronomers Discover a Sleeping Giant: Ancient Black Hole 6 Billion Times the Sun’s Mass
James Webb Space Telescope (JWST) image of the highly distorted red galaxy MRG-M0138 seen through a foreground cluster…