Universe Today
NASA and Boeing Release New Rendering of their X-66 Sustainable Experimental Airliner
Webb Sees a Star-Forming Region Blowing Vast Bubbles
What Can We Learn Flying Through the Plumes at Enceladus?
NASA Announces its 2025 Budget. Lean Times Ahead.
A 790,000 Year-Old Asteroid Impact Could Explain Seafloor Spherules
Researchers recently collected 850 millimeter-sized spherules from the seafloor near Papua New Guinea. They believed they were caused by an interstellar bolide that struck the atmosphere in 2014. Most were terrestrial in origin or resembled typical iron or chondritic meteoroids, but a small ratio was unusual. In a new paper, scientists propose that these spherules are similar to debris found in a vast region caused by an impactor that hit Earth 788,000 years ago.
Continue reading
Ultrablack Coating Could Be Ideal for Telescopes
Are Andromeda and the Milky Way Already Exchanging Stars?
Colliding Neutron Stars are the Ultimate Particle Accelerators
This is Europa Clipper's Version of the Golden Record
Black Holes are Tearing Stars Apart All Around Us
Astronomers Propose a 50-Meter Submillimeter Telescope
Black Holes Need Refreshing Cold Gas to Keep Growing
How were supermassive black holes able to grow so rapidly in the early Universe? Galactic mergers were believed to be the answer, providing fresh material to feed black hole growth. According to researchers, that's not enough; the process also requires reservoirs of cold gas at the center of the host galaxy. Actively feeding black holes blast radiation, heating gas so it won't collapse. Cold gas can be pulled into accretion disks and fuel black hole growth.
Continue reading
Cyborg Jellyfish Could Help Explore Oceans Autonomously
SpaceX is Gearing Up for the Starship's Third Orbital Test Flight
Ariane 6 is Coming Together
This Hot Jupiter is Doomed to Crash Into its Star in Just Three Million Years
White Dwarfs Might Be Less Dead Than We Thought
The standard theory says that white dwarfs are the dead cores of main sequence stars. They're out of fuel and cooling off to the background temperature of the Universe. But now observations show that white dwarfs are surprisingly warm, even though they "died" billions of years ago. This could be from an internal process that causes crystals to form and float upward, pushing heavier liquid downward toward the star's center and releasing gravitational energy.
Continue reading
Pentagon Report Rules Out UFO Cover-Up, But the Debate Goes On
Science Fiction is Learning About Exoplanets From Science
Satellite Measurements Show That Global Carbon Emissions are Still Rising
Astronomers Image 62 Newly-Forming Planetary Systems
This Galaxy Was Already Dead When the Universe Was Only 700 Million Years Old
Perseverance Sees Phobos, Deimos and Mercury Passing in Front of the Sun
How Long Will Advanced Civilizations Try to Communicate With Us?
One of the Oldest Astrolabes Has Both Hebrew and Arabic Markings
Drones Could Help Map the Lunar Surface with Extreme Precision
Perseverance is Keeping Track of the Big Picture While it's Exploring Mars
Now You Can See Exactly Where Hubble and JWST are Pointed
Betelgeuse's Surface is Boiling Furiously
Crew-8 Arrives at the ISS, Despite a Crack in the Capsule
Astronomers Find the Most Massive Pair of Supermassive Black Holes Ever Seen
What's the Best Way to Pack for Space?
Webb Sees a System That Just Finished Forming its Planets
When a young star begins forming, it's spinning rapidly, surrounded by a flattened disk that grows its future planets. Once the star can ignite fusion in its core, its stellar winds kick in, clearing out the remaining gas and dust, starving its planets for material. Now, JWST has found an older star in this exact phase of the cycle, dispersing its gas into interstellar space. This limits how much larger the planets can become until no material remains.
Continue reading
Webb Sees a Surprisingly Active Galaxy When the Universe Was Only 430 Million Years Old
Juno Measures How Much Oxygen is Being Produced by Europa
The LIFE Telescope Passed its First Test: It Detected Biosignatures on Earth.
Massive Stars Have the Power to Shape Solar Systems
Grabbing Samples from the Surface of Mars
Astronomers Can See the Impact Site Where an Asteroid Crashed Into a White Dwarf
When a star like the Sun reaches the end of its life, it becomes a red giant and blows away its outer layers, leaving an exposed core - a white dwarf. What happens to its planets? Some were consumed when it became a red giant; others could spiral inward and impact the star. Astronomers have found white dwarfs that were polluted with metals in the past, but now they've found one with a metal scar on its surface, where a large, metal-rich asteroid crashed onto the surface.
Continue reading
Curiosity Rover is Climbing Through Dramatic Striped Terrain on Mars
A Giant Gamma-Ray Bubble is a Source of Extreme Cosmic Rays
New Study Addresses how Lunar Missions will Kick up Moondust.
How Warm Are the Oceans on the Icy Moons? The Ice Thickness Provides a Clue.
NASA Tests the New Starship Docking System
China Has Built a Huge Space Simulation Chamber
The International Space Station's Air Leaks are Increasing. No Danger to the Crew
Planetary Atmospheres: Why study them? What can they teach us about finding life beyond Earth?
How Startups on Earth Could Blaze a Trail for Cities on Mars
This Planet-Forming Disk has More Water Than Earth's Oceans
When an Object Like 'Oumuamua Comes Around Again, We Could be Ready With an Interstellar Object Explorer (IOE)
