Ethan SiegelinStarts With A Bang!Why humanity must invest in exploring the UniverseThere are so many problems, all across planet Earth, that harm and threaten humanity. Why invest in researching the Universe?·10 min read·18 hours ago--1--1
Ethan SiegelinStarts With A Bang!The compelling case for axions as our dark matterThe majority of the matter in our Universe isn’t made of any of the particles in the Standard Model. Could the axion save the day?·11 min read·1 day ago--5--5
Ethan SiegelinStarts With A Bang!How we know the Universe is 13.8 billion years oldThe 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?·10 min read·2 days ago--7--7
Ethan SiegelinStarts With A Bang!Starts With A Bang podcast #104 — The magnetized galactic centerThe center of the galaxy doesn’t just host stars and a black hole, but an enormous set of rich gassy and dusty features. Find out more!·2 min read·4 days ago----
Ethan SiegelinStarts With A Bang!What was it like when human beings transformed the Earth?Although human beings arrived on Earth just ~300,000 years ago, we’ve transformed the entire planet completely. Here’s how we did it.·12 min read·5 days ago--7--7
Ethan SiegelinStarts With A Bang!What was it like when humans first arose on planet Earth?Despite billions of years of life on Earth, humans first arose only ~300,000 years ago. It took all that time to make our arrival possible.·10 min read·6 days ago--14--14
Ethan SiegelinStarts With A Bang!What was it like when mammals appeared and thrived?Although mammals may be the dominant form of life today, we’re relative newcomers on planet Earth. Here’s our place in natural history.·11 min read·Apr 10, 2024--9--9
Ethan SiegelinStarts With A Bang!What was it like when life on Earth became complex?For billions of years on Earth, life was limited to simple unicellular, non-differentiated organisms. In a mere flash, that changed…·11 min read·Apr 9, 2024--10--10
Ethan SiegelinStarts With A Bang!What was it like when oxygen killed almost all life on Earth?Known as the Great Oxygenation Event, Earth froze over as oxygen accumulated in our atmosphere, nearly driving all life extinct.·11 min read·Apr 8, 2024--15--15
Ethan SiegelinStarts With A Bang!Ask Ethan: How do symmetries lead to conservation laws?First derived by Emmy Noether, for every symmetry a theory possesses, there’s an associated conserved quantity. Here’s the profound link.·10 min read·Apr 5, 2024--10--10