Earth’s distance from the Sun found to dramatically alter seasons
A strip of cool water stretches west from South America along the equator, helping set the pace for…
Ancient Milky Way stars challenge the age of the universe and the Hubble tension
The oldest stars in the Milky Way are forcing a fresh look at one of cosmology’s biggest arguments.…
Earth’s magnetic poles once took 70,000 years to reverse
Earth’s magnetic field does not simply switch direction like a flipped light switch. It weakens, wanders, and reorganizes…
Tardigrades and water reveal potential for food growth on Mars
Tardigrades have a reputation for being nearly indestructible. These microscopic animals, often nicknamed water bears, can dry out…
Scientists develop a new way to measure the expansion rate of the universe
For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe…
Dark matter and neutrinos are linked and interact with each other
A quiet shift in the numbers behind the universe’s growth is pushing scientists toward a bold possibility. Two…
New simulations reveal the hidden forces shaping ‘snowman’ worlds beyond Neptune
On a frigid orbit beyond Neptune, some of the solar system’s smallest worlds project a strange silhouette. Two…
New study uncovers the formative conditions that made Io dry and Europa watery
A moon can sit next door to another and still feel like a different world. Around Jupiter, that…
Event Horizon Telescope captures magnetic turbulence flickering at the edge of black hole M87*
For a few brief nights each year, you get a rare chance to watch a monster blink. The…
The Milky Way’s core may be dense dark matter, not a black hole
For decades, scientists have theorized that the Milky Way Galaxy’s supermassive black hole, known as Sagittarius A* (Sgr…
JWST confirmed the most distant galaxy ever observed at 13.5 billion light years away
With James Webb Space Telescope (JWST), NASA has confirmed its sightings of the farthest known galaxy to date,…
JWST observations reveal massive helium clouds escaping from exoplanet WASP-107 b
Astronomers from the University of Geneva, working with colleagues in Canada and the United States, have captured the…