Cosmic Log
Scientists say NASA’s Kepler Space Telescope has discovered Earth’s “older, bigger first cousin” – a planet that’s about 60 percent bigger than our own, circling a sunlike star in an orbit that could sustain liquid water and perhaps life.
“Today, Earth is a little bit less lonely, because there’s a new kid on the block,” Kepler data analysis lead Jon Jenkins, a computer scientist at NASA’s Ames Research Center, said during a NASA teleconference about the find.
The crater that contains those puzzlingly bright spots on Ceres may harbor an equally puzzling haze. Or not. The hints of haze on the dwarf planet, seen in some of the images coming from NASA’s Dawn spacecraft, add another intriguing twist to Ceres’ mysteries.
The hubbub over haze arose this week during the Exploration Science Forum at NASA’s Ames Research Center in California. For months, Dawn’s scientists have been observing – and trying to make sense out of – unusually reflective spots within Ceres’ craters that show up when the asteroid turns into the sunlight. The team has speculated that they could be frozen pools of water ice, or patches of light-colored, salt-rich material.
Re-publishing to correct link to GeekWire article
Bringing artificial intelligence to bear on issues relating to nuclear weapons might sound like the stuff of a scary sci-fi movie — but at the Department of Energy’s Pacific Northwest National Laboratory, it’s just one of the items on the to-do list.
One of PNNL’s research priorities is to identify and combat complex threats to national security, and AI can help meet that priority by detecting attempts to acquire nuclear weapons or associated technology.
Nuclear proliferation detection is one of the potential applications that could get an assist from the Center for AI @PNNL, a newly announced effort to coordinate research that makes use of AI tools — including the generative AI tools that have captured the attention of the tech world over the past year or two.
“For decades we’ve been doing artificial intelligence,” center director Court Corley, PNNL’s chief scientist for AI, told me in a recent interview. “What we’re seeing now, though, is an exceptional phase shift in where AI is being used and how it’s being used.”