Ethan SiegelinStarts With A Bang!Ask Ethan: Is it all-or-nothing for the expanding Universe?On the largest of cosmic scales, the Universe is expanding. But it isn’t all-or-nothing everywhere, as “collapse” is also part of the…2d ago42d ago4
Ethan SiegelinStarts With A Bang!Starts With A Bang podcast #107 — Binary stars and modified gravityThe standard picture of our Universe is that it’s dominated by dark matter and dark energy. But this alternative is also worth considering.2d ago2d ago
Ethan SiegelinStarts With A Bang!The quantum physics behind fireworks displaysFrom the explosions themselves to their unique and vibrant colors, the fireworks displays we adore require quantum physics.3d ago23d ago2
Ethan SiegelinStarts With A Bang!How the Solar System led planet-hunters astrayThe structure of our Solar System has been known for centuries. When we finally started finding exoplanets, they surprised everyone.4d ago54d ago5
Ethan SiegelinStarts With A Bang!The scientist’s 10 commandmentsThere are many things that separate science from ideology, politics, philosophy, or religion. Follow these 10 commandments to get it right.5d ago245d ago24
Ethan SiegelinStarts With A Bang!The epic race inside the Pillars of Creation is almost overThe last infant stars are finishing their formation inside these pillars of gas. The evaporation of those columns is almost complete.6d ago6d ago
Ethan SiegelinStarts With A Bang!Ask Ethan: Why is it darker during Winter than Summer?Sure, there’s less daylight during Winter than Summer, as your hemisphere is tilted away from the Sun. But darkness goes deeper than that.Jul 53Jul 53
Ethan SiegelinStarts With A Bang!The only two “arrows of time” we have don’t matchOur thermodynamic arrow of time explains why the entropy of any isolated system always increases. But it can’t explain what we perceive.Jul 413Jul 413
Ethan SiegelinStarts With A Bang!The mystery of the Moon’s two faces could soon be solvedThe near and far sides of the Moon are so different from each other, and no one is sure why. New lunar samples could confirm a wild theory.Jul 37Jul 37
Ethan SiegelinStarts With A Bang!Why JWST doesn’t have the same limits as HubbleAll telescopes are fundamentally limited in what they can see. JWST reveals more distant galaxies than Hubble, but still can’t see them…Jul 2Jul 2