2026-09-26T13:09:51Z https://njump.me Ethan Siegel https://njump.me/npub16hepj6m0405ngvgmt7rscrvl2cqg5vtm45hafkkfkusq3r4khjxsjdvk7a https://amanita.us-east.host.bsky.network/xrpc/com.atproto.sync.getBlob?did=did:plc:p54kmv7xtyjyzhhnujqmv4tx&cid=bafkreidnypwji7d2hcliqy5gs44tu3nwpom7ncut6tw7efmc6jspishpge https://amanita.us-east.host.bsky.network/xrpc/com.atproto.sync.getBlob?did=did:plc:p54kmv7xtyjyzhhnujqmv4tx&cid=bafkreidnypwji7d2hcliqy5gs44tu3nwpom7ncut6tw7efmc6jspishpge https://njump.me/nevent1qqsrlf3ztd8lfncrgu60462pc8e46hfwjpd00jvw8ex40ysm484w8vgzyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g6kacsvn Johannes Kepler, not Newton or Einstein, is science’s best role model<br/><br/>People often look to Einstein or Newton as a scientist&#39;s best role model.<br/><br/>But Kepler did something more important: he changed his mind when the evidence demanded it.<br/><br/>[bigthink.com/starts-with-...](<a href="https://bigthink.com/starts-with-a-bang/johannes-kepler-role-model/">https://bigthink.com/starts-with-a-bang/johannes-kepler-role-model/</a> )<br/>#space #astro #kepler #science<br/><br/>[Johannes Kepler, not Newton or...](<a href="https://bigthink.com/starts-with-a-bang/johannes-kepler-role-model/">https://bigthink.com/starts-with-a-bang/johannes-kepler-role-model/</a> ) 2026-07-30T15:23:58Z https://njump.me/nevent1qqs2075zl5an0fkjkzdns72sgawq46ypjpyqe5lp6fadzsjs3pkl5rszyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g6j99xyl Starts With A Bang podcast #130 – the initial mass function of stars<br/><br/>Give the Universe a massive enough cold cloud of gas, and it&#39;ll give you a spectrum of stars of all different masses.<br/><br/>But that spectrum isn&#39;t universal, and we finally understand why.<br/>[bigthink.com/starts-with-...](<a href="https://bigthink.com/starts-with-a-bang/starts-with-a-bang-podcast-130-the-initial-mass-function-of-stars/">https://bigthink.com/starts-with-a-bang/starts-with-a-bang-podcast-130-the-initial-mass-function-of-stars/</a> )<br/>#space #astro<br/><br/>[Starts With A Bang podcast #13...](<a href="https://bigthink.com/starts-with-a-bang/starts-with-a-bang-podcast-130-the-initial-mass-function-of-stars/">https://bigthink.com/starts-with-a-bang/starts-with-a-bang-podcast-130-the-initial-mass-function-of-stars/</a> ) 2026-06-06T07:18:14Z https://njump.me/nevent1qqsp3e8vfgutdsg5c7fcl3akdl49wsar6ktgca8uw8cv54su6qhcraczyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g6dn3xpu No, particle physics colliders cannot ever destroy the Universe<br/><br/>Every time we push the energy frontier in particle physics, laypersons fear that the world, or even the Universe, will be destroyed.<br/><br/>Here&#39;s why we&#39;re certain it&#39;s all safe... for now.<br/>[bigthink.com/starts-with-...](<a href="https://bigthink.com/starts-with-a-bang/particle-physics-destroy-universe/">https://bigthink.com/starts-with-a-bang/particle-physics-destroy-universe/</a> )<br/>#physics #astro<br/><br/>[No, particle physics colliders...](<a href="https://bigthink.com/starts-with-a-bang/particle-physics-destroy-universe/">https://bigthink.com/starts-with-a-bang/particle-physics-destroy-universe/</a> ) 2026-03-05T17:27:59Z https://njump.me/nevent1qqs9qlg07qpdesly9ecne6s8k532dvk7tcr6g0vtqx0tq7n3rs2c2tczyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g6slqef2 This is your chance to tell the NSF how to fix itself.<br/><br/>Say no to the grift of AI datacenters. Say no to putting &#34;quantum&#34; where it has no business. Say no to false metrics. Say no to biotech scams.<br/><br/>Say yes to sustained investments. To fundamental science. To flagship facilities. To STEM education.<br/><br/>RE: <a href="https://bsky.app/profile/did:plc:yhsjztvyfpnvs6k75aevzmkt/post/3mcdclk55f22i">https://bsky.app/profile/did:plc:yhsjztvyfpnvs6k75aevzmkt/post/3mcdclk55f22i</a> 2026-01-13T21:00:54Z https://njump.me/nevent1qqs2jeeafk2f7y5j64smcvp48eh3p0pemp7006qrhrwp5ehjtnpf4cgzyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g63dfydc We still don’t know how “hot” the hot Big Bang was<br/><br/>The earliest stages of the hot Big Bang were far hotter than any conditions that exist in the Universe today.<br/><br/>But things weren&#39;t arbitrarily hot; here&#39;s what we do (and don&#39;t) know today.<br/><br/>[bigthink.com/starts-with-...](<a href="https://bigthink.com/starts-with-a-bang/how-hot-big-bang/">https://bigthink.com/starts-with-a-bang/how-hot-big-bang/</a> )<br/>#space #astro #physics<br/><br/>[We still don&#39;t know how &#34;hot&#34; ...](<a href="https://bigthink.com/starts-with-a-bang/how-hot-big-bang/">https://bigthink.com/starts-with-a-bang/how-hot-big-bang/</a> ) 2025-10-22T16:27:32Z https://njump.me/nevent1qqstrnuqkqp7vt796jsje6uekhjsr7vpkullekmkw0jxggar50hez2czyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g6jr99yt If you haven&#39;t ever heard this Sam Cooke classic, it&#39;s just as relevant as ever.<br/><br/>A change IS gonna come.<br/><br/>[www.youtube.com/watch?v=wEBl...](<a href="https://www.youtube.com/watch?v=wEBlaMOmKV4">https://www.youtube.com/watch?v=wEBlaMOmKV4</a> )<br/><br/>[Sam Cooke - A Change Is Gonna ...](<a href="https://www.youtube.com/watch?v=wEBlaMOmKV4">https://www.youtube.com/watch?v=wEBlaMOmKV4</a> ) 2025-10-15T23:20:49Z https://njump.me/nevent1qqsvsu75r4r8mrmfm2axanmdcrs6m082g6mn8pgxtjhg97ywsyh9rnczyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g6uxux9p The true cost of “solar power at night” with Reflect Orbital<br/><br/>If you played SimCity 2000, you might&#39;ve loved the idea of &#34;beaming power from space&#34; down to Earth.<br/><br/>Reflect Orbital took that idea, tech-bro&#39;d it, and now could end &#34;night&#34; as we know it.<br/>[bigthink.com/starts-with-...](<a href="https://bigthink.com/starts-with-a-bang/true-cost-solar-power-night-reflect-orbital/">https://bigthink.com/starts-with-a-bang/true-cost-solar-power-night-reflect-orbital/</a> )<br/>#space #astro<br/><br/>[The true cost of &#34;solar power ...](<a href="https://bigthink.com/starts-with-a-bang/true-cost-solar-power-night-reflect-orbital/">https://bigthink.com/starts-with-a-bang/true-cost-solar-power-night-reflect-orbital/</a> ) 2025-10-15T15:28:07Z https://njump.me/nevent1qqswals2mvxvjujgm0ufzf3z6udahcw8xvttveh0w3xkhgp020v383czyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g6e4nr20 At 36 billion solar masses, is the heaviest black hole too massive?<br/><br/>Yes, gravitational lensing has helped us find a 36 billion solar mass black hole an impressive ~5 billion light-years away.<br/><br/>It&#39;s *almost* too massive, and that means something profound.<br/>[bigthink.com/starts-with-...](<a href="https://bigthink.com/starts-with-a-bang/36-billion-solar-masses-heaviest-black-hole/">https://bigthink.com/starts-with-a-bang/36-billion-solar-masses-heaviest-black-hole/</a> )<br/>#space #astro<br/><br/>[At 36 billion solar masses, is...](<a href="https://bigthink.com/starts-with-a-bang/36-billion-solar-masses-heaviest-black-hole/">https://bigthink.com/starts-with-a-bang/36-billion-solar-masses-heaviest-black-hole/</a> ) 2025-08-12T16:21:43Z https://njump.me/nevent1qqsdllsa93gj3ex9pwgxwmdau7wzrjkhg60pg2w450f0z6q4xd0m6gqzyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g6tendqa Are parallel universes and the multiverse real?<br/><br/>#AskEthan<br/><br/>Parallel universes and the multiverse are fun, but highly speculative, ideas.<br/><br/>Can anything we do ever &#34;prove&#34; that they&#39;re actually real?<br/><br/>[bigthink.com/starts-with-...](<a href="https://bigthink.com/starts-with-a-bang/parallel-universes-multiverse-real/">https://bigthink.com/starts-with-a-bang/parallel-universes-multiverse-real/</a> )<br/>#space #astro #physics #science<br/><br/>[Ask Ethan: Are parallel univer...](<a href="https://bigthink.com/starts-with-a-bang/parallel-universes-multiverse-real/">https://bigthink.com/starts-with-a-bang/parallel-universes-multiverse-real/</a> ) 2025-08-08T15:21:22Z https://njump.me/nevent1qqsxuc4z2kplhke2tth6dwcshd4szr63r554rq96dq38c7d49x87daqzyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g62wczh2 Holy crap.<br/><br/>Viewing the updated block schedule for the upcoming #AAS246 meeting, and so many town halls, where we get updates from NASA and NSF admins, plus updates on specific missions and observatories, have been outright cancelled.<br/><br/>Likely means tons of things are going away, with no information. 2025-06-08T00:37:06Z https://njump.me/nevent1qqs9g5n9ydhnhxpnq5tq4dazsl0gdj0nlfvkxwu4kdfl4xdrw342mtqzyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g6pt4vn4 Science’s best answer to “where did the Universe come from?”<br/><br/>For hundreds of thousands of years, humans have wondered what our Universe is and where it came from. <br/><br/>Only now, in the 20th and 21st century, has science delivered the answers.<br/>[bigthink.com/starts-with-...](<a href="https://bigthink.com/starts-with-a-bang/science-answer-where-universe-come-from/">https://bigthink.com/starts-with-a-bang/science-answer-where-universe-come-from/</a> )<br/>#space #science #physics<br/><br/>[Science&#39;s best answer to &#34;wher...](<a href="https://bigthink.com/starts-with-a-bang/science-answer-where-universe-come-from/">https://bigthink.com/starts-with-a-bang/science-answer-where-universe-come-from/</a> ) 2025-04-15T15:49:29Z https://njump.me/nevent1qqs0nrggp9dyjzdh477rxcjtt07kp7xrgxf7s2wxplkwjez56x7tfwczyr2lyxttd747jdp3rd0cwrqdnatqpz330wkjl4x6exmjqzywk67g6lu4lhp 10 reality-bending facts about the scientific Multiverse<br/><br/>Love the multiverse?<br/><br/>Hate it?<br/><br/>Don&#39;t believe it&#39;s real or relevant for our existence?<br/><br/>These 10 facts about it, like it or not, are firmly rooted in science.<br/>[bigthink.com/starts-with-...](<a href="https://bigthink.com/starts-with-a-bang/10-facts-scientific-multiverse/">https://bigthink.com/starts-with-a-bang/10-facts-scientific-multiverse/</a> )<br/>#space #physics #science<br/><br/>[10 reality-bending facts about...](<a href="https://bigthink.com/starts-with-a-bang/10-facts-scientific-multiverse/">https://bigthink.com/starts-with-a-bang/10-facts-scientific-multiverse/</a> ) 2025-04-01T14:23:27Z