Ethan SiegelinStarts With A Bang!Official verdict: JWST’s early galaxies didn’t break cosmologyThe “little red dots” were touted as being too massive, too early, for cosmology to explain. With new knowledge, everything adds up.17h ago17h ago
Ethan SiegelinStarts With A Bang!It’s important that weight and mass are not the sameHere on Earth, we commonly use terms like weight (in pounds) and mass (in kilograms) as though they’re interchangeable. They’re not.1d ago31d ago3
Ethan SiegelinStarts With A Bang!7 unnecessary assumptions about life in the UniverseSo far, Earth is the only planet that we’re certain possesses active life processes. Here’s what we shouldn’t assume about life elsewhere.2d ago82d ago8
Ethan SiegelinStarts With A Bang!Ask Ethan: Why don’t we feel the Universe’s expansion accelerating?The Universe isn’t just expansion, but the expansion itself is accelerating. So why can’t we feel it in any measurable way?5d ago65d ago6
Ethan SiegelinStarts With A Bang!What is the origin of quantum uncertainty?No matter how good our measurement devices get, certain quantum properties always possess an inherent uncertainty. Can we figure out why?6d ago126d ago12
Ethan SiegelinStarts With A Bang!Why haven’t we detected a signal from intelligent aliens yet?Life arose on Earth early on, eventually giving rise to us: intelligent and technologically advanced. “First contact” still remains…Aug 2816Aug 2816
Ethan SiegelinStarts With A Bang!How far away are we from the location of the Big Bang?If you think of the Big Bang as an explosion, we can trace it back to a single point-of-origin. But what if it happened everywhere at once?Aug 273Aug 273
Ethan SiegelinStarts With A Bang!Why do we count the Universe’s age from 13.8 billion years ago?The Universe is 13.8 billion years old, going back to the hot Big Bang. But was that truly the beginning, and is that truly its age?Aug 262Aug 262
Ethan SiegelinStarts With A Bang!If the Big Bang wasn’t the first thing ever, what caused it?Many contrarians dispute that cosmic inflation occurred. The evidence says otherwise.Aug 237Aug 237
Ethan SiegelinStarts With A Bang!Is it true that photons truly live forever?In all the Universe, only a few particles are eternally stable. The photon, the quantum of light, has an infinite lifetime. Or does it?Aug 2220Aug 2220