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Squishy Neutron Star Setback Dampens Hopes of Exotic Matter
...it occurs at all — might not happen until close to the point where neutron stars collapse into black holes. (The precise dividing line isn’t known exactly but is believed...
Physicists Identify the Engine Powering Black Hole Energy Beams
Supermassive black holes emit jets of white-hot plasma that stretch thousands of light-years across the cosmos. For the first time, researchers have identified what’s creating these jets. Paradoxically, black holes,...
New Black Hole Math Closes Cosmic Blind Spot
...black holes. The rate of change in the frequency also provides information about a black hole’s spin. Finally, the amplitude (or height) of the detected wave can reveal how far...
How Gravity Is a Double Copy of Other Forces
...trick in gravity’s repertoire. Black holes famously warp space-time intensely enough to trap light, and spinning black holes drag the warped space-time fabric around with them. The equations are super...
Cosmic Map of Ultrahigh-Energy Particles Points to Long-Hidden Treasures
...galaxies: objects called active galactic nuclei, or AGNs. AGNs are the white-hot centers of “active” galaxies, in which plasma engulfs the central supermassive black hole. The black hole sucks the...
How Radio Astronomy Reveals the Universe
...massive stars known as pulsars, the cosmic microwave background (light bearing the fingerprints of the Big Bang itself), and the first signs of supermassive black holes at the centers of...
Federico Ardila on Math, Music and the Space of Possibilities
...so I think our campus is about 30% white, 30% Latino, 25% Asian, 10% black, something like this. Also, gender-wise, there’s — you’ll see the whole gender spectrum, and there’s...
Long-Missing Midsize Black Hole Flashes Into View
...“seeds” are believed to be intermediate-mass black holes — giant black holes that fall in a mass gap between stellar-mass black holes, formed from dead stars, and supermassive black holes....
The Near-Magical Mystery of Quasiparticles
...study how black holes evolve with time. The Nobel Prize-winning mathematical physicist Roger Penrose theorized that rotating black holes can lose energy and gradually slow down; Jacquet plans to test...