Ethan SiegelinStarts With A Bang!Ask Ethan: Is Earth’s climate changing as the Sun loses mass?As the Sun ages, it loses mass, causing Earth to spiral outwards in its orbit. Will that cool the Earth down, or will other effects win…21h ago421h ago4
Ethan SiegelinStarts With A Bang!Why doesn’t the expanding Universe break the speed of light?Just 13.8 billion years after the hot Big Bang, we can see objects up to 46.1 billion light-years away. No, this doesn’t violate…1d ago51d ago5
Ethan SiegelinStarts With A Bang!Strongest “missing link” in black hole physics discovered at lastWe know of stellar mass and supermassive black holes, but intermediate mass ones have long proved elusive. Until now.2d ago32d ago3
Ethan SiegelinStarts With A Bang!Arguments against dark matter in the Bullet Cluster fall apartThe Bullet Cluster has, for nearly 20 years, been hailed as an empirical “proof” of dark matter. Can their detractors explain it away?3d ago23d ago2
Ethan SiegelinStarts With A Bang!Why humanity is a cosmic tale of despair and hopeOn a cosmic scale, our existence seems insignificant and inconsequential. But from another perspective, humans are completely remarkable.4d ago84d ago8
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…Jul 125Jul 125
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.Jul 12Jul 12
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.Jul 112Jul 112
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.Jul 106Jul 106
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.Jul 924Jul 924