Ethan SiegelinStarts With A Bang!Ask Ethan: Can we detect dark matter if it’s truly collisionless?Dark matter’s hallmark is that it gravitates, but shows no sign of interacting under any other force. Does that mean we’ll never detect it?21h ago321h ago3
Ethan SiegelinStarts With A Bang!Your guide to 2024’s Perseid meteor showerPeaking on the night of August 11/12, up to 100 bright meteors per hour will be visible. Here’s how to make the most of it.1d ago81d ago8
Ethan SiegelinStarts With A Bang!7 changes destroying the Moon would have on planet EarthEarth, the only rocky planet with a large, massive satellite, is greatly affected by the Moon. Destroying it would cause 7 major changes.2d ago62d ago6
Ethan SiegelinStarts With A Bang!Modern astrophysics answers Isaac Newton’s oldest questionStraddling the bounds of science and religion, Newton wondered who set the planets in motion. Astrophysics reveals the answer.3d ago53d ago5
Ethan SiegelinStarts With A Bang!Astronomers solve longstanding galaxy cluster collision puzzleHow do normal matter and dark matter separate by so much when galaxy clusters collide? Astronomers find the surprising, unexpected answer.4d ago4d ago
Ethan SiegelinStarts With A Bang!Ask Ethan: Did black holes form directly from the Big Bang?Even in the very early Universe, there were heavy, supermassive black holes at the centers of galaxies. How did they get so big so fast?Aug 22Aug 22
Ethan SiegelinStarts With A Bang!The reality of quantum fluctuations was proven back in 1947Often viewed as a purely theoretical, calculational tool only, direct observation of the Lamb Shift proved their very real existence.Aug 16Aug 16
Ethan SiegelinStarts With A Bang!10 revolutionary finds from JWST’s first 2 years of scienceIn July of 2022, the first science images from JWST were unveiled. Two years later, it’s changed our view of the Universe.Jul 311Jul 311
Ethan SiegelinStarts With A Bang!New theoretical calculation solves the ‘muon g-2’ puzzleA longstanding mismatch between theory and experiment motivated an exquisite muon measurement. At last, a theoretical solution has arrived.Jul 304Jul 304
Ethan SiegelinStarts With A Bang!How fast can a human possibly run 100 meters?The all-time record is Usain Bolt’s 9.58 seconds, set in 2009. What is the fastest time, ultimately, for an ideal human body?Jul 29Jul 29