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.23h ago2
Ethan SiegelinStarts With A Bang!The Hubble tension: still unresolved, despite new measurementsThe big question isn’t whether the Universe is expanding at 67 or 73 km/s/Mpc. It’s why different methods yield such different answers.2d ago5
Avi LoebWhere Will Voyager Be in a Billion Years?Last month I asked my brilliant undergraduate student at Harvard, Shokhruz Kakharov: “Where will the Voyager spacecraft be in a billion…Jun 143Jun 143
Alexandre Kassiantchouk Ph.D.inTime MattersEscaping Slow Time at c×√(1–1/D²) Speedc — speed of light, D — time dilation, 1/D — ”speed of time”1d ago1d ago
Avi LoebIs Dark Matter Made of Primordial Black Holes?Less than a trillionth of a second after the Big Bang, rare regions in the Universe may have had a radiation density above a critical value…3d ago63d ago6
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.23h ago2
Ethan SiegelinStarts With A Bang!The Hubble tension: still unresolved, despite new measurementsThe big question isn’t whether the Universe is expanding at 67 or 73 km/s/Mpc. It’s why different methods yield such different answers.2d ago5
Avi LoebWhere Will Voyager Be in a Billion Years?Last month I asked my brilliant undergraduate student at Harvard, Shokhruz Kakharov: “Where will the Voyager spacecraft be in a billion…Jun 143
Alexandre Kassiantchouk Ph.D.inTime MattersEscaping Slow Time at c×√(1–1/D²) Speedc — speed of light, D — time dilation, 1/D — ”speed of time”1d ago
Avi LoebIs Dark Matter Made of Primordial Black Holes?Less than a trillionth of a second after the Big Bang, rare regions in the Universe may have had a radiation density above a critical value…3d ago6
Alexandre Kassiantchouk Ph.D.inTime Mattersc = 299,792,458 m/s Does Not Limit Speed❗We got it upside down. The fact is, c just defines local time unit s (second)❗16h ago21
Ethan SiegelinStarts With A Bang!Our cosmic home is typical for stars, but not for galaxiesMost stars in the Universe are located in big, massive, Milky Way-like galaxies. But most galaxies aren’t like ours at all.4d ago6
