Most People Misunderstand How Stars Actually Work
Ask Ethan: What’s the biggest misconception in astronomy? Sure, misconceptions abound in astronomy: about dark matter, type Ia supernovae, the Big Bang, and much more. But the biggest misconception of all is far more basic: it's how stars work at all. https://t.co/ipVkmvbRF0
Unification Attempts May Be Fundamentally Misguided, Always Needing New Ingredients
The idea of “theories of everything” may be fundamentally wrong All attempts at "unification" or "theories of everything" necessarily add new particles and new ingredients to the theory. Is this a fundamentally flawed approach? https://t.co/Khl3XWnF9s
Antimatter: Humanity’s Only Viable Interstellar Fuel
Only antimatter provides the energy we need for interstellar travel This Earth Day, some dream of saving the Earth, while others dream of leaving it. Here's why using antimatter as fuel is humanity's best bet for interstellar travel. https://t.co/ZBs6y8YGTm
Dark Matter Passes New Cosmic Test, MOND Fails
Dark matter passes a new cosmic test, while MOND fails A new cosmic test has finally, with CMB and large-scale structure data, become realistic: using the kinetic Sunyaev-Zel'dovich effect to test dark matter vs. MOND. Guess who wins? https://t.co/jja8ObZ5OQ
Stars Are Born when Equilibrium, Not Ignition, Occurs
Star birth doesn’t come from ignition, but from equilibrium In astronomy, "a star is born" happens when nuclear fusion ignites in its core, according to the internet. That's not the scientific standard, though: equilibrium is. https://t.co/9OP0xyy5xL
Planet Formation Timeline Finally Solved After 35 Years
Ask Ethan: How long does it take planets to form? Just 35 years ago, we knew so little about how planets formed, or how long the process took. Here in 2026, we now have a complete end-to-end story: validated by actual data. https://t.co/coJPyFNQW0
Strong Force Explained Simply, No Color Charge Needed
Can you explain the strong nuclear force without colors? The idea of a "color charge" confuses a lot of people, and the analogy certainly has its flaws. Here's how to understand the strong force without colors, and without group theory, too. https://t.co/4qKBpVpZCI
Viral Saturn Image Is AI Fake, Here's Proof
This viral image of Saturn isn’t real; it’s AI slop A new image of "Saturn's North Pole" has gone viral. Too bad it's an AI fake. Here's what the real things look like, and how you can tell for yourself. https://t.co/r5kz9pGCZM
Mass Alone Determines Planets, Stars, and Brown Dwarfs
Everything in the Universe changes by adding enough mass What sets the dividing line between rocky planets, gas giants, brown dwarfs, and stars of different colors and lifetimes? One parameter alone, mass, explains almost all of it. https://t.co/I3pkaf2lX7
Bad Measurement Cannot Explain Hubble Tension, Study Shows
“One bad measurement” ruled out as Hubble tension explanation When thinking about the Hubble tension, many fault "one bad measurement," somewhere, as the ultimate culprit. Astronomers just showed this cannot be the case. https://t.co/e3cdhUyAZT
Scientists Spot First Ever Proto‑Protoplanet, Pre‑Planetary Stage
Starts With A Bang #128 – Planet formation and proto-protoplanets You've heard of planets, exoplanets, and protoplanets. Now, for the first time, we've discovered something more primitive than any of them: a proto-protoplanet. Here's what it means. https://t.co/1HEVsXDCDp
Three Factors That Let Artemis II Surpass Apollo’s Record
How did Artemis II break Apollo’s distance record? #AskEthan If you ask google how Artemis II broke Apollo 13's distance record, it'll lie and say "because the rocket was more powerful." But these three reasons, combined, are how it really happened. https://t.co/lqbj3u00kP
Inflation Explains Universe’s Low‑entropy Big Bang
Cosmic inflation explains the Universe’s low entropy at birth The "past hypothesis" problem questions why, if entropy always increases, the hot Big Bang began with such a low amount of it. That's another puzzle solved by cosmic inflation. https://t.co/WYVdSHxPx9
Discovery of Ultra‑pristine Star Reshapes Early Star Formation
Astronomers just found the most pristine star of all-time The most pristine star of all-time has been found: J0715-7334, with just 0.005% of the heavy element content of the Sun. Here's what it teaches us about how stars grow up. https://t.co/3FEBKLH6g8
Artemis II Moon Return Sparks Hope for Humanity
Something special is happening in space right now As Artemis II astronauts reach the Moon for the first time in 54 years, it gives humanity something we've been missing for decades: hope that we can become something great. https://t.co/wdFUF4tfOB