Scientists have discovered that even relatively small black holes can be surprisingly inefficient at swallowing matter. Using Japan’s XRISM X-ray observatory, astronomers studied the binary…
“A Star Explosion Visible in Daylight? V Sagittae’s Fate!”
Imagine looking up at the sky in the middle of the day—and seeing a brand-new star shining as bright as Venus. Astronomers now believe this…
“Neutron Stars May Be Hiding Dark Matter Signals!”
Dark matter remains one of the biggest mysteries in the universe. We know it’s out there, but we can’t see it. One of the leading…
“Chandra Spots a Black Hole Growing Out of Control!”
Did you know that some black holes in the early universe grew faster than physics should allow? Using NASA’s Chandra X-ray Observatory, astronomers have found…
Primordial Black Holes — Our Best Shot at Seeing Hawking Radiation
In February, scientists detected the most energetic neutrino ever observed — a so-called “ghost particle” with over 100 peta-electron-volts of energy. That’s far beyond anything…
“Supermassive Black Holes Caught Killing Their Host Galaxies”
Twelve point nine billion years ago — less than a billion years after the Big Bang — some of the most massive galaxies in the…
Astronomers Discover a New Black-Widow Pulsar!
Astronomers have just announced an exciting discovery — a brand-new black widow pulsar, named PSR J1544-2555. But what does that mean?Black widow pulsars are a…
“Physicists Shocked: Particle Decay Defies Explanation”
Did physicists just find cracks in the Standard Model? Recently, a mysterious particle decay has puzzled scientists.It’s all about the kaon — a particle made…
“NASA Says? No—Japan’s Spacecraft Aims for a 5-Minute Day Asteroid!”
Astronomers have just revealed new details about asteroid 1998 KY26, the target of Japan’s Hayabusa2 extended mission—and it’s a much tougher challenge than expected. New…
Some Asteroids Explode Without Warning
Not all asteroids behave the same way—and some are much more dangerous. In February 2023, a small asteroid named 2023 CX1 was detected just 7…