Universe Today
This Quasar Helped End the Dark Ages of the Universe
Webb Provides an Explanation for "Little Red Dots"
Astronomers Reveal the 3D Structure of the Ring Nebula
It's Official, 2024 Was the Hottest Year on Record
The Webb Shows Us Where Cosmic Dust Comes From
Jupiter's Clouds Contain Smoggy Ammonium Hydrosulphide, Not Ammonia Ice
Here's How We Could Measure the Mass of SgrA* to Within One Solar Mass
The mass of the Milky Way's supermassive black hole, SgrA*, is roughly 4.3 million times the mass of the Sun, give or take a few hundred thousand solar masses. But a team of astronomers thinks they can dial that accuracy down to know with an error rate of a single solar mass. They propose to do this by measuring gravitational waves from SgrA* as brown dwarfs orbit it closely. These dwarfs act like natural probes mapping out the warped space around SgrA*.
Continue reading
How to Debate a Flat-Earther
LIGO Has Detected Unusual Black Holes Merging, But they Probably Don't Explain Dark Matter
Gravitational Waves Could Give Us Insights into Fast Radio Bursts
As We Explore the Solar System, Radiation Will Be One of Our Greatest Threats
LIGO Fails to Find Continuous Gravitational Waves From Pulsars
Astronauts Deploy the First Wooden Satellite into Orbit
Dormancy Could Be One of the Keys to Life on Earth (and Beyond)
The Wavey Reality Behind the Uncertainty Principle
BepiColombo Just Completed its Sixth Flyby of Mercury. Here are the Best Images
Planets Can Form in Even the Harshest Conditions
Could We Detect Advanced Civilisations by their Industrial Pollution? Probably Not.
Protecting Computers from Space Radiation
NASA is Sending a Vacuum Cleaner to the Moon
Is There a Fifth Force of Nature?
It's Time for Sustainable Development Goal for Space
A New Industrial Megaproject Threatens the View of the World's Best Observatories
The Cosmos is Waiting for us to Explore. But we Should Choose our Path Wisely.
The Moon Occults Mars for North America Monday Night, Just Before Opposition 2025
Roman's Telescope and Instruments are Joined
SLS Could Launch A Titan Balloon Mission
How to Deploy and Talk To LEAVES on Venus
NASA is Keeping an Eye on InSight from Space
Planets Without Plate Tectonics Could Still Be Habitable
Astronomers are Losing the Night Sky (and Radio Sky) to Satellite Megaconstellations
At the end of 2023, there were more than 5,000 satellites orbiting Earth, with 10s of 1000s more on the way. Although individual satellites might be invisible to the unaided eye, their collective light might already be causing a 10% brightness increase in the night sky. Large surveys like Vera Rubin will see frequent satellite trails obscuring important data. And the radio pollution is also increasing with communications satellites. What can be done to restore the sky?
Continue reading
We Could Search for Aliens Harvesting Energy from their Pet Black Hole
Here's How Pluto and Charon Became a Bizarre Double Planet
The Lunar Surface Remelted, Obscuring an Easy Answer to its True Age
NASA Lays Out Two New Options for Mars Sample Return
A CubeSat Mission Will Detect X-rays from GRBs and Black-Hole Mergers
Venus is Important. We Should Take its Exploration Seriously.
You're Made of Carbon that Took a Journey into Intergalactic Space
This Superbacteria can Withstand Enough Radiation to Kill a Person
Will Comet G3 ATLAS Perform at Perihelion?
A Dragon Reveals Individual Stars From A Time When the Universe Was Half Its Present Age
It's nearly impossible to identify individual stars billions of light years away. But thanks to gravitational lensing, astronomers have identified red giant stars in a distant galaxy.
Continue reading
Pushing A Probe To Alpha Centauri Using A Relativistic Electron Beam
If We Want to Live on Other Worlds, We're Going to Need New Clocks
There Were Over 260 Orbital Launches in 2024. A New Record
New Study Explains How Mars Dust Storms Can Engulf the Planet
Student Team Designs 2U CubeSat with Big Ambitions
This Fast Radio Burst Definitely Came From a Neutron Star
Since the first fast radio burst (FRB) was discovered in 2007, astronomers have been puzzling over their source. These bright radio flashes come from seemingly random directions across the universe. Finally, astronomers have pinned down one FRB to a specific neutron star in a galaxy about 200 light-years away. The FRB was unleashed from a region within 10,000 km of the neutron star and probably emerged from its magnetosphere.
Continue reading
NASA Scientists Discover "Dark Comets" Come in Two Populations.
Could There Be Bacteria Living on Mars Today?
Could Habitable White Dwarf Planets Retain Their Oceans? Maybe.
Some white dwarfs have planets, but to be habitable worlds they would need to hold on to their oceans during the star's red giant stage.
Continue reading