Universe Today
Juno Makes its Closest Flyby of Io
The Oldest Known Spiral Galaxy Has Ripples Like the Surface of a Pond
The Most Massive Neutron Stars Probably Have Cores of Quark Matter
When a star with several times the mass of the Sun dies in a supernova explosion, it ends up as a neutron star, compressing its protons and electrons into neutrons. But neutron stars have layers, and the most massive ones there might have a core made of an even denser material called "deconfined quark matter." A new supercomputer simulation predicts that the most massive neutron stars almost certainly have these quark-matter cores.
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Watch a Full Martian Day, From Dawn to Dusk
After all of This Time Searching for Aliens, is it The Zoo Hypothesis or Nothing?
An Ancient Stone Found in Italy is an Accurate Map of the Night Sky
The Sun Just Blasted its Strongest Flare in 6 Years. Get Ready for Auroras
Simulation Perfectly Matches What We See When Neutron Stars Collide
You'll Need all the Internet to Download the Full Resolution of this New Running Chicken Nebula Image
ESA's Tiny Pinhole Thruster is Ready for Production.
How a Small Town in Japan Fiercely Defends its Dark Skies
How Many Planets Could Be in the Kuiper Belt?
TRAPPIST-1c Isn't the Exo-Venus We Were Hoping For. But Don't Blame the Star
Organic Molecules Come from the Universe's Cold Places
NASA Tests Out 3D-printed Rotating Detonation Rocket Engine!
The Early Universe Was Surprisingly Filled With Spiral Galaxies
The Milky Way is a mature, grand spiral galaxy, and so are many galaxies around us. Astronomers have assumed that spiral galaxies are the result of many mergers between dwarf galaxies and shouldn't show up until later on in the Universe's evolution. New research using JWST has shown that's not true, with a surprising number of spiral galaxies in the first few billions years of the Universe's history. Spiral arms showed up much earlier than anyone expected.
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Mars is Surprisingly Volcanically Active
JWST Sets a New Record, Sees Newly Forming Stars in the Triangulum Galaxy
Why Quantum Mechanics Defies Physics
NASA Astronauts are Trying Out the Starship Lunar Elevator
We Owe Our Lives to the Moon
Top Astronomy Events for 2024
2024 features the final total solar eclipse for the CONUS until 2044, and much more.
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Miniaturized Jumping Robots Could Study An Asteroid's Gravity
How Supersymmetry Saved String Theory
Using Smart Materials To Deploy A Dark Age Explorer
The Atmosphere of an Exoplanet Reveals Secrets About Its Surface
Astronomers have now characterized the atmospheres of several exoplanets, with JWST and upcoming missions promising to turn that into the thousands. The next era will come when our observatories can directly observe the surfaces of exoplanets. We're learning that the atmospheres of planets and their surfaces affect one another, and just by observing their atmospheres, we'll learn valuable secrets about the surfaces of those worlds.
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NASA Tightbeams a Cat Video From 31 Million Kilometers Away
Watch 14 Years of Gamma-Ray Observations in This Fascinating NASA Video
Questions Remain on Chinese Rocket That Created an Unusual Double Crater on the Moon
Holograms Might Save Physics
Ouch. Canadarm2 Took a Direct Hit From a Micrometeorite
Should We Send Humans to Titan?
Should We Be Preparing for First Contact?
Dream Chaser is Getting Tested at NASA
ESA is Stockpiling Simulated Regolith for the Ultimate Lunar Playground.
Lost In Space? Just Use Relativity
Webb Sees a Supernova Go Off in a Gravitationally Lensed Galaxy - for the Second Time
We Just had the Strongest Solar Flare in the Current Solar Cycle
It's Time for Saturn's "Spokes" to Return
Finally. A Productive Use for Nuclear Weapons: Asteroid Defense
Why the Universe Might be a Hologram
It Doesn't Take Much to Get a Runaway Greenhouse Effect
Enjoy the Holiday-Themed Christmas Tree Cluster
Astronomers Find the Birthplaces of Stars in the Whirlpool Galaxy
The Strangest Coincidence in Physics: The AdS/CFT Correspondence
A New View of Uranus' North Pole from JWST
Blue Origin's New Shepard Completes 24th Flight; New Glenn Hopefully on the Horizon
Can Webb Find the First Stars in the Universe?
Astronomers Find Two Planetary Systems Around Sun-Like Stars
A Radio Telescope on the Moon Could Help Us Understand the First 50 Million Years of the Universe
