Ethan SiegelinStarts With A Bang!Starts With A Bang Podcast #105 — Dark Matter and GalaxiesWe normally think of dark matter as the “glue” that holds galaxies and larger structures together. But it’s so much more than that.·2 min read·1 day ago--1--1
Ethan SiegelinStarts With A Bang!Ask Ethan: Can you explain wide binaries and modified gravity?There are many theories of gravity out there, and many interpretations of wide binary star data. What have we really learned from it all?·12 min read·2 days ago----
Ethan SiegelinStarts With A Bang!Does the Universe expand by stretching or creating space?The evidence that the Universe is expanding is overwhelming. But how? By stretching the existing space, or by creating new space itself?·12 min read·3 days ago--14--14
Ethan SiegelinStarts With A Bang!Our best idea for the “origin of gold” doesn’t add upIn 2017, we detected gold being forged in a neutron star-neutron star merger. Now, in 2024, the amounts created simply don’t add up.·11 min read·4 days ago--9--9
Ethan SiegelinStarts With A Bang!New particle at last! Physicists detect the first “glueball”Glueballs are an unusual, unconfirmed Standard Model prediction, suggesting bound states of gluons alone exist. We just found our first…·11 min read·5 days ago--6--6
Ethan SiegelinStarts With A Bang!JWST uncovers new secrets within the Horsehead NebulaThe most iconic “dark nebula” of all lights up under JWST’s infrared gaze. Here’s what’s newly discovered inside.·3 min read·6 days ago--1--1
Ethan SiegelinStarts With A Bang!The big idea that our Universe is a hologramHolograms preserve all of an object’s 3D information, but on a 2D surface. Could the holographic Universe idea lead us to higher…·10 min read·May 10, 2024--9--9
Ethan SiegelinStarts With A Bang!Black holes are common. So where are the white holes?In General Relativity, white holes are just as mathematically plausible as black holes. Black holes are real; what about white holes?·11 min read·May 9, 2024--21--21
Ethan SiegelinStarts With A Bang!The scientific story behind the timeline of our UniverseFrom the earliest stages of the hot Big Bang (and even before) to our dark energy-dominated present, how and when did the Universe grow up?·12 min read·May 8, 2024--10--10
Ethan SiegelinStarts With A Bang!Can the known particles and interactions explain consciousness?At a fundamental level, only a few particles and forces govern all of reality. How do their combinations create human consciousness?·11 min read·May 7, 2024--15--15