Universe Today
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
Groundbreaking New Maps of the Sun's Coronal Magnetic Fields
Book Review: Is Earth Exceptional?
A new book looks at the latest scientific insights versus a key question in astronomy and space science.
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Are Claims of Alien Visitation Causing a Problem to Society?
Juno Sees a Brand New Volcano on Io
High Resolution Images Show Bubbling Gas on the Surface of Another Star
A Swarm of Robots to Explore Mars' Valles Marineris
Space Stations Get Pretty Moldy. How Can We Prevent it?
Projecting what Earth will Look Like 1000 years from now Could Assist in the Search for Advanced Civilizations
Two Supermassive Black Holes on a Collision Course With Each Other
The Milky Way's Supermassive Black Hole Might Have Formed 9 Billion Years Ago
Starliner Comes Home Empty
What Did We Learn From Manufacturing the ACS3 Solar Sail Mission?
A Stellar Flyby Jumbled Up the Outer Solar System
Amateur Astronomer Finds Additional Asteroids With Remote Telescopes
Three amazing recent asteroid finds show what's possible in terms of astronomy online.
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BepiColombo's New Images of Mercury are Cool
