Satellites watch world’s largest iceberg on crash course with Antarctic penguin island (photo/video)
The mega-iceberg poses a significant threat to South Georgia Island a remote wildlife haven.
Astronomers discover 196-foot asteroid with 1-in-83 chance of hitting Earth in 2032
A 196-foot-wide asteroid has a 1-in-83 chance of striking Earth in 2032. An expert tells Space.com where this asteroid could impact our planet and what level of destruction it could cause.
Newly discovered super-Earth orbits in and out of its star’s habitable zone. Could life survive its extreme climate?
Located less than 20 light years away, HD 20794d could potentially be one of the most Earth-like planets found so far, despite its extreme climatic variability.
An interstellar visitor may have changed the course of 4 solar system planets, study suggests
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.
A cosmic ‘CT scan’ shows the universe is far more complex than expected
A "cosmic CT scan" performed by scientists using two very different cosmic surveys has revealed the cosmos is less clumpy and more complicated than we thought.
Gigantic 500,000-mile ‘hole’ in the sun’s atmosphere aims aurora-sparking solar wind at Earth (photo)
The gigantic coronal hole is blasting high-speed solar wind toward Earth, potentially igniting vibrant auroras and minor geomagnetic activity on Jan. 31.
Scientists find hints of the dark universe in 3D maps of the cosmos
Computer algorithms can model the universe, matching simulations to observations and revealing the distribution of dark matter.
Supermassive black holes in ‘little red dot’ galaxies are 1,000 times larger than they should be, and astronomers don’t know why
"Little red dot" galaxies discovered by the James Webb Space Telescope in the early cosmos appear to be ruled by supermassive black holes that are 1,000 times too massive.
To decode dark energy, the Rubin Observatory will find millions of exploding vampire stars
The Vera C. Rubin Observatory is set to detect millions of exploding vampire stellar remnants called "white dwarfs," shedding light on dark energy.
Why Comet G3 (ATLAS) will be ‘remembered as the Great Comet of 2025’ (photos)
C/2024 G3 (ATLAS) is one of the few comets on record that became bright enough to be visible in the daytime without optical aid like binoculars or a telescope.