Universe Today
Three of the Oldest Stars in the Universe Found Circling the Milky Way
A Rotating Spacecraft Would Solve So Many Problems in Spaceflight
White Dwarfs are Often Polluted With Heavier Elements. Now We Know Why
Saturn-Sized Exoplanet Isn't Losing Mass Quickly Enough
Gravitational Lenses Could Pin Down Black Hole Mergers with Unprecedented Accuracy
TRAPPIST-1 Outer Planets Likely Have Water
Perseverance Wraps Up Over 1,000 Days on Mars. Still Going Strong
Astronomers Try to Directly Observe Epsilon Eridani b. No Luck. Maybe Webb Can Find it?
Some Clever Ways to Search for Primordial Black Holes
These Rocks Formed in an Ancient Lake on Mars
What a Weekend! Spectacular Aurora Photos from Around the World
SpaceX Shows Off Its New Extravehicular Activity Suit
Do Clashing Galaxies Create Odd Radio Circles?
Supermassive Black Holes Got Started From Massive Cosmic Seeds
One longstanding mystery in astronomy is how supermassive black holes got so heavy so early. JWST has shown evidence that supermassive black holes were already active and feeding 13 billion years ago. These are quasars, and they're so bright they drown out the light from the rest of the galaxy, but Webb can see it. Astronomers found that early black holes were much more massive than their host galaxies than modern versions.
Continue reading
If You've Never Seen An Aurora Before, This Might Be Your Chance!
Lighting Up the Moon's Permanently Shadowed Craters
Here's Where China's Sample Return Mission is Headed
Why Hot Jupiters Spiral into Their Stars
Does the Milky Way Have Too Many Satellite Galaxies?
Astronomers are on the Hunt for Dyson Spheres
We Need to Consider Conservation Efforts on Mars
Roman Space Telescope Will Be Hunting For Primordial Black Holes
What Deadly Venus Can Tell Us About Life on Other Worlds
A Nebula that Extends its Hand into Space
41,000 Years Ago Earth's Shield Went Down
Fall Into a Black Hole With this New NASA Simulation
Solar Max is Coming. The Sun Just Released Three X-Class Flares
New Evidence for Our Solar System's Ghost: Planet Nine
NASA Takes Six Advanced Tech Concepts to Phase II
China is Going Back to the Moon Again With Chang'e-6
What Can Early Earth Teach Us About the Search for Life?
China Creates a High-Resolution Atlas of the Moon
Dinkinesh's Moonlet is Only 2-3 Million Years Old
The Universe Could Be Filled With Ultralight Black Holes That Can't Die
Steven Hawking famously calculated that black holes should evaporate, converting into particles and energy over vast periods. But what if the evaporation process stops at the Planck scale? A new paper suggests that primordial black holes that formed early in the Universe could still be around, unable to evaporate fully. They would continue roaming the Universe as cosmic relics, occasionally accreting matter and evaporating again.
Continue reading
Starlink on Mars? NASA Is Paying SpaceX to Look Into the Idea
Did You Hear Webb Found Life on an Exoplanet? Not so Fast…
Vera Rubin's Primary Mirror Gets its First Reflective Coating
Two Stars in a Binary System are Very Different. It's Because There Used to be Three
The Highest Observatory in the World Comes Online
Is the JWST Now an Interplanetary Meteorologist?
Solar Orbiter Takes a Mind-Boggling Video of the Sun
What Can AI Learn About the Universe?
Enceladus's Fault Lines are Responsible for its Plumes
Lunar Explorers Could Run to Create Artificial Gravity for Themselves
This is an Actual Picture of Space Debris
Insanely Detailed Webb Image of the Horsehead Nebula
Binary Stars Form in the Same Nebula But Aren't Identical. Now We Know Why.
Earth Had a Magnetosphere 3.7 Billion Years Ago
Astronomers Think They've Found Examples of the First Stars in the Universe
First Light from Einstein Probe: A Supernova Remnant
