Space
Read Time : 1 Minutes

What does the term ‘supersonic’ mean in astronomy?

spqrm
0

Occasionally I see references in Astronomy to the speed of something as “supersonic.” I’m having trouble reconciling this term with velocities typically found among astronomical objects. Wouldn’t “relativistic” be closer to the truth? Anything close to sonic speeds in Earth’s atmosphere wouldn’t cover much distance in outer space. Peter IanchiouTucson, […]

Space
Read Time : 0 Minutes

Pretty in Pink

spqrm
0

This image of Westerlund 2 released on March 19, 2026, features Chandra X-ray Observatory data (pink) and infrared data from NASA’S James Webb Space Telescope (red, orange, green, cyan, and blue). Scores of gleaming stars ringed in neon pink stretch across the frame, highlighting a cluster where stars are between […]

Technology
Read Time : 0 Minutes

Beijing-based Vast, which uses AI models to generate 3D assets from text and image prompts, raised ~$200M at a $1B+ valuation, and says it has 20M global users (Bloomberg)

spqrm
0

Bloomberg: Beijing-based Vast, which uses AI models to generate 3D assets from text and image prompts, raised ~$200M at a $1B+ valuation, and says it has 20M global users  —  Vast, a 3D-modeling startup founded by a 29-year-old gamer, raised nearly $200 million to become the latest Chinese AI outfit […]