Universe Today
Shape-Shifting Robots Mimic Muscle Movements
What Happens to the Climate When Earth Passes Through Interstellar Clouds?
From Frozen to Sweltering: Earth's Climate Over the Last 485 Million Years
Those Aren't Dyson Spheres, They're HotDOGs
Earlier this year, researchers claimed that they had found infrared signatures for candidate Dyson Sphere megastructures in archival WISE data. Astronomers were skeptical, suggesting that these objects might just be stars visually close to highly luminous "Hot Dust-Obscured Galaxies (HotDOGS)." The number of candidates matches the expected frequency of these chance alignments. This new paper puts a limit on the number of Dyson Spheres in our galactic neighborhood.
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A New Catalog Charts the Evolution of the Universe Over Time
This Might Be the Best Gravitational Lens Ever Found
High-Resolution Images of the Sun Show How Flares Impact the Solar Atmosphere
Researchers Mimic Extracting Energy From Black Holes in the Lab
As black holes spin, they drag space-time along with them, and scientists have proposed that this could be a source of energy for an advanced civilization, harvesting momentum from material ejected from this twisting spacetime. The concept has been generalized, and it's theoretically possible to extract energy from anything spinning. Now, researchers have mimicked the process in the lab, beaming electromagnetic waves at a spinning object and extracting energy.
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Advanced Civilizations Will Overheat Their Planets Within 1,000 Years
Astronomers Find the Longest Black Hole Jets Ever Seen
Second Generation Starlinks are 32 Times Brighter in Radio Wavelengths
There's Water All Over the Moon
Io's Volcanoes are Windows into its Hot Interior
Could Stars Hotter Than the Sun Still Support Life?
Astronomers have several classifications for stars: the Sun is a G-type star. As you go up the list, the next hotter stars are the F-type, with surface temperatures in the range of 6200–7200 K. Could these stars have habitable zones where planets might support life? According to a new study, there have already been planets discovered within the habitable zones of F-type stars, which also lie outside the region where there is too much ultraviolet radiation.
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Slime Mold Can Teach Us About the Cosmic Web
Plants Would Still Grow Well Under Alien Skies
The Polaris Dawn Crew is Back on Earth
Building a Worldwide Map of Light Pollution
Life Might Thrive on the Surface of Earth for an Extra Billion Years
Exoplanets Could be Hiding Their Atmospheres
One of the most intriguing planetary systems is TRAPPIST-1, with several Earth-sized worlds orbiting a red dwarf star, and astronomers have already scanned planets to search for evidence of an atmosphere. The first two worlds appear to be airless super-mercuries, and the hope lies on the next few planets, which orbit in the star's habitable zone. But what if the planets are hiding their atmospheres? A new paper suggests that night-side clouds can mimic an airless world.
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Actually, Ceres Might Have Formed in the Asteroid Belt After All
Metal Part 3D Printed in Space for the First Time
NASA Watches a Peanut-Shaped Asteroid Drift Past Earth
Did Mars Once Have a Third, Larger Moon?
The Early Universe Had a Lot of Black Holes
SETI Scientists Scan TRAPPIST-1 for Technosignatures
If there's an advanced civilization in the TRAPPIST-1 system living on multiple worlds, there's a way to eavesdrop on their conversation from world to world. Researchers directed the Allen Telescope Array at the TRAPPIST-1 system during times of "planet-planet occultations," when two of the worlds in the system are aligned with Earth and their star. Communications directed at the planet could spill over and be detectable from Earth. No signals were detected.
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A Star Was Kicked Out of a Globular Cluster by an Intermediate-Mass Black Hole
Astronomers Have Found a Star with a Hot Jupiter and a Cold Super Jupiter in Orbit
Future Gravitational Wave Observatories Could See the Earliest Black Hole Mergers in the Universe
Could You Find What A Lunar Crater Is Made Of By Shooting It?
There are Plenty of Uses for Powerful Lasers in Space. But Where Should We Put Them?
There Could be a Way to Fix Spacecraft at L2, Like Webb and Gaia
Could We Find Primordial Black Holes in the Solar System?
One possible explanation for dark matter is primordial black holes. These are lower-mass black holes formed in the first moments of the universe when the conditions were hot and dense. If there are asteroid-mass black holes floating through the cosmos, a few might be here in the solar system. The only way to detect them would be to measure their gravitational interactions with planets and other asteroids. Is our current technology up to the task?
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Earth Might Have Had Rings Half a Billion Years Ago
Earth Will Have a Tiny New Mini-Moon for a Few Months
An Ambitious Mission to Neptune Could Study Both the Planet and Triton
Mars has an Amazing Variety of Clouds
Can a Greenhouse with a Robotic Arm Feed the Next Lunar Astronauts?
Early Dark Energy Could Resolve Two of the Biggest Mysteries in Cosmology
Studying Stars from the Lunar Surface with MoonLITE, Courtesy of NASA's Commercial Lunar Payload Services
New Video Shows How Tiny Spacecraft Will "Swarm" Proxima Centauri
A Gravity Map of Mars Uncovers Subsurface Mysteries
Scientists Recreate Mars Spiders in the Lab
Polaris Dawn is Away, Sending Another Crew Into Orbit to Perform the First Private Spacewalk
The Outer Reaches of the Milky Way are Full of Stars, and the JWST is Observing Them
More Bodies Discovered in the Outer Solar System
How the ESA's Rosalind Franklin Rover Will Drill for Samples on Mars
Artemis Missions Could Put the most Powerful imaging Telescope on the Moon
And the Winner is.... Astronomy Photographers of the Year 2024 Announced
See a First-Person View of the First Private Spacewalk
