Black Hole

NASA’s Hubble Space Telescope has captured an elliptical galaxy M60 (the large, diffuse galaxy at the center) along with the bluish spiral galaxy NGC 4647 (upper right). At the center of galaxy M60 lies a huge black hole that is 4.5 billion times larger than our Sun, one of the…

Physicist and best-selling author Stephen Hawking presents a program in Seattle in 2012. Although he... made some tremendous contributions to science, his analogy about black holes decaying has contributed to a generation of misinformed physicists, physics students, and physics enthusiasts. AP Photo / Ted S. Warren The greatest idea of…

At the heart of almost every galaxy lies an enormous black hole. These monsters are so massive that they get a classification of their own: supermassive black holes, with masses millions or even billions of times the mass of our sun. And when two galaxies collide, their supermassive black holes…

A few years ago a team of chemists unboiled an egg. Boiling causes protein molecules in the egg to twist around one another, and a centrifuge can disentangle them to restore the original. The technique is of dubious utility in a kitchen, but it neatly demonstrates the reversibility of physics.…

Credit: Jason DrakefordWe do not have a theory to tell us everything about how a black hole works, but new research is shedding a least some light on one of their many mysteries. Tulika Bose: This is 60-Second Science. I'm Tulika Bose. You probably already know what a black hole…

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Home News Science & Astronomy A remastered version of the image of the black hole at the heart of M87 shows its gravitational influence and the 'footprint' of an astrophysical jet. (Image credit: Broderick et al. 2022, ApJ, 935, 61) A newly remastered image of the black hole at the…

How fast is our universe expanding? The Hubble constant is one of the most critical numbers in cosmology because it tells us how fast the universe is expanding. There are different methods exist to measure this rate. However, determining this number’s accuracy is essential to understand better fundamental questions like…