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Astrophysics & Cosmology
Black holes, dark matter, gravitational waves, and the big‑picture universe.
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Latest in Astrophysics & Cosmology
Nobel laureate Brian Schmidt challenges Yonsei University’s claim on cosmic expansion
22+ hour, 19+ min ago (340+ words) 2011 Nobel Physics laureate Brian Schmidt of Australian National University says science will ultimately deliver the answer Professor Lee Young-Wook and his team from the Department of Astronomy and Space Science at Yonsei University continue to argue that there is an…...
AI Solves the “Why Is Space Dark?” Paradox
15+ min ago (38+ words) At night the sky is full of stars. Big sky, infinite stars. So why is most of it dark? An AI broke down what physicists call Olbers’ paradox, and the …...
Scientists Detect A Disturbance On Earth From An Explosion 2 Billion Light-Years Away
4+ hour, 4+ min ago (755+ words) A record-setting gamma-ray burst traveled nearly 2 billion light-years before leaving a measurable electrical signature in Earth's atmosphere....
Astronomers Stopped Staring at the Universe's Strangest Red Dots and Looked Around Them Instead, Here's What They Found
10+ hour, 8+ min ago (441+ words) What if the most puzzling objects the James Webb Space Telescope has ever spotted were never the real story? Astronomers have spent years staring at the glare of these tiny red dots, only to end up with more questions than…...
Quantum Blur to Cosmic Structure
11+ hour, 10+ min ago (265+ words) Non-Commutative Cosmology (Sun #78) We grow up believing space is an infinitely smooth canvas. A metre can be divided into centimetres, then millimetres, then smaller …...
What Is Humanity’s Place in the Cosmos?
15+ hour, 38+ min ago (1467+ words) A lifelong fascination with terra incognita led the astrophysicist Priyamvada Natarajan to map out the universe’s most enigmatic phenomena....
Strange Seeds Appear to Be Growing Into Massive Black Holes
16+ hour, 40+ min ago (492+ words) Published Sep 20, 2026 8:00 AM EDT For years now, scientists have been puzzled by the existence of “little red dots” first showing up in observations by NASA’s James Webb Space Telescope. These objects appeared in a region they believe dates to just…...
Scientists outline how spacecraft could reach a nearby black hole within a century
16+ hour, 49+ min ago (1094+ words) A physicist outlines how laser-driven nanocraft could someday reach a nearby black hole and test gravity directly. (CREDIT: Wikimedia / AI-Generated / CC BY-SA 4.0) The idea would require a suitable black hole to be discovered surprisingly close to Earth, along with technologies…...
Black Hole “Burps” May Follow the Same Rule Across the Universe
17+ hour, 17+ min ago (242+ words) ...
Scientists opened a sealed envelope after 10 years. Gravity still didn’t make sense
18+ hour, 9+ min ago (1342+ words) A decade-long NIST experiment has produced a new measurement of the universal gravitational constant that differs unexpectedly from another leading result, deepening a 225-year-old physics puzzle. The discrepancy is tiny, but for one of nature’s most fundamental constants, it is…...