Uncategorized
- Astronomy
Planet-making disk has a banana split
Two banana-shaped arcs of gas and dust face each other within a newly discovered planet-forming disk that surrounds a young, nearby star.
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19702
The photo in this article looks to me more like a solar eclipse, complete with a clear-cut circular blackout in the center and flares. Mike PattersonGrand Rapids, Mich. The similarity is because astronomers used an occulting disk on the telescope to block the glare of the central star .—R. Cowen
- Health & Medicine
Measuring Stick: Spinal tap test tracks Alzheimer’s compound
A new test is the first to measure production and clearance of amyloid-beta in the cerebrospinal fluid of people, enabling scientists to track this Alzheimer's disease peptide.
