Recent content by Astronuc

Anthropic has developed Claude Mythos, which apparently is so powerful (or too powerful) that they will not release it to the general public but rather to cybersecurity institutions and select enterprise clients. https://www.cnn.com/2026/04/07/tech/anthropic-claude-mythos-preview-cybersecurity...

Artemis I was an unmanned test flight to test various systems and regain experience. Artemis II is the first manned flight in 54 years. It tests the same systems, but now also crew/life support systems. The idea would be to test all the systems to root out any issues/problems and fix before...

PBS NOVA video on the Vera Rubin telescope (published 6 July 2025). https://www.pbs.org/wgbh/nova/video/this-giant-telescope-will-reveal-the-universe-in-unbelievable-detail/

Yes, it was observed over Ohio, but I was wondering how far the debris field extended if it 'exploded' or ruptured. I've observed meteorites before, and some that disperse over a wide area. Since the meteorite was observed to travel to the SSE, I am curious how far remnants traveled. If it...

https://www.cbc.ca/player/play/video/9.7107713 The 'Explorer Plate' is east of an active ocean ridge, which is pushing out 'new' ocean crust of the north coast of Vancouver Island, BC, Canada. Earth’s Crust Is Tearing Apart off the Pacific Northwest—and That’s Not Necessarily Bad News...

University of Chicago scientists continue to investigate. https://news.uchicago.edu/explainer/origin-life-earth-explained (last reviewed 2025) Georgia Tech has a program too. https://astrobiology.nasa.gov/news/new-study-identifies-possible-ancestors-of-rna/ (2018) Carbon, hydrogen, oxygen...

A couple of points: 1. 224Ra->220Rn is found in the decay chain of 232Th rather than in the decay chains of 235U or 238U, although 232Th is a decay product of 236U, which does form when 235U undergoes radiative (n,γ) capture rather than fissioning...

In Ohio, Indiana, Kentucky, West Virginia? Perhaps somewhere in the Ohio River Valley? So, Iron or Iron-nickel?

I saw some dashcam video this morning. Pretty cool! Apparently NASA reported a 7 ton meteor. From the AP cited by Andy Resnick in the OP: I like the comment: "A 7-ton meteor that sped across the Cleveland sky at 45,000 miles (72,420 kilometers) per hour . . . ."

Adding to what others mentioned, Cl is an anion, so one has a cation (Au) surrounded by 3 or 4 Cl atoms. H⋅Au(III)Cl4, has 4 Cl anions surrounding an Au cation. Any one of the 4 Cl atoms can lose an electron such that the complex becomes negative. Something I just learned: "Au(III)Cl4 is used...

Oops! From FORTUNE: ‘Proceed with caution’: Elon Musk offers warning after Amazon reportedly had mandatory meeting to address ‘high blast radius’ and AI-related incidents https://tech.yahoo.com/ai/articles/proceed-caution-elon-musk-offers-194901281.html I think ‘high blast radius’ refers to...

I read about the behavior of 3He, probably around 1975, just one of the many interesting topics that inspired me to study physics and science, in general. I recall that liquid 3He would flow out of a test tube, IIRC, if it was held above a pool of liquid 3He, and it would flow in if the bottom...

Did it ever stop? I think there has been ongoing eruptions since. https://www.usgs.gov/volcanoes/kilauea/summit-webcams

My wife just happened to be listening to a video on Science Channel. It caught my attention, partly due to the mention of killer stars, or death stars, and mostly because if mentioned ASASSN-15lh (which sounded like assassin). I then searched for references, and also search PF for any...

My wife was listening to a video about superluminal supernova (Type Ic), ASASSN-15lh, or SN 2015L. It was discovered through the All Sky Automated Survey for SuperNovae (ASAS-SN). The event occurred in a galaxy ~3.82 billion ly from earth. Peak Apparent Magnitude was 16.9. The mass of...