Universe Today
Why Even Einstein Couldn't Unite Physics
Mystery Solved. How We Get Ultra-Compact Dwarf Galaxies
SETI Researchers Just Got a $200 Million Gift to Search for Life
Gaia is so Accurate it Can Predict Microlensing Events
Using data from DR3, a team of Chinese researchers have predicted thousands of future microlensing events!
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China Wants to Retrieve a Sample of Mars by 2028
In preparation for their sample-return mission to Mars (Tianwen-3), Chinese scientists have created an atmospheric model that accurately simulates Martian weather
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How Einstein Unlocked the Quantum Universe and Created the Photon
An Epic Collaboration Between Hubble and JWST
Hubble and Webb have come together to create one of the most detailed and revealing images of an iconic galaxy cluster!
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If You Account for the Laniakea Supercluster, The Hubble Tension Might Be Even Larger
When you measure the Universe's expansion rate to relatively nearby galaxies against the expansion rate in the cosmic microwave background radiation, the numbers don't agree, and their error bars don't overlap. This is the Hubble Tension. A new paper suggests the difference might be even greater by 2-3% (1.1 km/s/Mpc) when you account for the gravitational effect from the Laniakea supercluster, which dominates the gravity in our part of the Universe.
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How to Think About a Four-Dimensional Universe
NASA Wants to Learn to Live Off the Land on the Moon
ESA is Testing a Modular Multipurpose Rover that Could Be a Science Lab or a Tiny Bulldozer
If We Could Find Them, Primordial Black Holes Would Explain a Lot About the Universe
As far as we know, black holes can only be formed by the death of massive stars, but a persistent theory says that black holes of all masses could have formed directly in the early Universe. These primordial black holes would help explain several mysteries in astronomy: outlier mergers of black holes, dark matter, and young supermassive black holes. How are they different from stellar mass black holes, and what upcoming instruments could detect them?
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Trisat-R's 2-mm Camera Took This Picture of the Earth From 6,000 Km Away
An innovative camera pioneering a new technology in space caught a unique view of our home world.
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Is Anything Absolute with Relativity?
Some of the Moon's Craters are From Interstellar Impacts. Can We Tell Which?
Sometimes Compact Galaxies Hide Their Black Holes
ESA Plans to Eliminate New Space Debris by 2030
ESA Has a Difficult Choice: Study Mars, Earth's Magnetosphere, or Gamma-Ray Bursts
The ESA Science Programme has narrowed down the possibilities for its next M-class mission to three concepts.
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Astronomers Find Dozens of Massive Stars Fleeing the Milky Way
What? Wow! That New Asteroid Image from Lucy Just Got Even More Interesting
How Einstein's Daydream of Light Created Relativity
What Can Slime Mold Teach Us About the Universe?
Astronauts Could Wear a Device to Prevent Disorientation in Space
Curiosity has Seen its 4,000th Martian Sunrise
Astronomers are Hoping to Detect Gravitational Waves Coming from Supernova 1987A
Enceladus has All the Raw Materials for Life
How to Make Asteroid Landings Safer
India Plans to Send Humans to the Moon by 2040
Amateur Astronomer Restores a Classic Historic Refractor
An old refractor telescope sees a second life under the night skies, thanks to the efforts of a dedicated amateur observer.
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Get a Reality Check on Plans to Build Cities in Space
Oops. Astronauts Lost a Tool Bag During a Spacewalk!
This is a First. An Exoplanet in a Polar Circumbinary Disc Surrounding Two Stars.
Juno Spots Salts and Organic Molecules on Ganymede's Surface
During its last flyby of Ganymede, the Juno probe reported finding traces of mineral salts and organic molecules on its surface.
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JWST Detects Carbon Dioxide in a Centaur for the First Time
Roman Could Finally Tell Us if Primordial Black Holes Exist
Supermassive Black Holes Shut Down Star Formation During Cosmic Noon
Using data from Webb's NIRSpec instrument, an international team has confirmed that quasars shut down star formation in galaxies billions of years ago.
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Searching for the Supernova Neutrino Background to the Universe
Civilizations Could Use Gravitational Lenses to Transmit Power From Star to Star
A new paper shows how gravitational lenses could be used to beam power from one star system to another.
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Dimorphos is Probably a Piece of Didymos
TESS Finds Eight More Super-Earths
The Most Powerful Ion Engine Ever Built Passes the Test
Exo-Jupiters' Commonality and Exclusivity Highlighted in Two New Studies
SETI Works Best When Telescopes Double-Check Each Other
A new paper recommends that future SETI experiments rely on simultaneous observations to eliminate background interference.
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Earth is Hiding Another Planet Deep Inside
Lucy Completes its First Flyby... and Discovers a Bonus Asteroid
NASA's Lucy mission hits the jackpot on its very first asteroid flyby this week.
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ESA's Hera Mission is Bringing Two Cubesats Along. They'll Be Landing on Dimorphos
Jupiter Looks Bizarre in Hubble's New Ultraviolet Image
Old Data from Kepler Turns Up A System with Seven Planets
Comet H2 Lemmon Brightens in Early November Ahead of Expectations
Discovered early this year, Comet C/2023 H2 Lemmon may approach naked eye brightness in November.
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A Dwarf Galaxy That's Almost All Dark Matter
Thanks to new techniques, astronomers are mapping the Universe with more precision, finding galaxies with more and less dark matter. Now astronomers think they've found one that's almost all dark matter with few stars. Dubbed "Nube", the galaxy contains about the same mass as the Large Magellanic Cloud, measuring 22,000 light-years across, with almost no stars inside it. This is the most massive and extended "Almost Dark Galaxy" astronomers have ever found.
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