Aug. 2, 1133: A total eclipse is misremembered

Visible in Scotland, the total solar eclipse of Aug. 2, 1133, featured nearly 4½ minutes of totality. This eclipse provides just one of many historical examples of people wrongly associating a celestial spectacle with an earthly event: In his Historia Novella, written between 1140 and 1143, English historian William of […]

Helio Highlights: July 2025

As NASA and its partners prepare to send astronauts back to the Moon, we must address the potential dangers caused by space weather, which can damage spacecraft and cause physical harm to unprotected astronauts in space.

Anthropic details “persona vectors”, patterns of activity within an AI model’s neural network that control its character traits, such as evil and sycophancy (Anthropic)

Anthropic: Anthropic details “persona vectors”, patterns of activity within an AI model’s neural network that control its character traits, such as evil and sycophancy  —  Read the paper  —  Language models are strange beasts.  In many ways they appear to have human-like “personalities” …