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AstronomyIs this young star ready to form planets?
New observations suggest that a mere stripling of a star, which might be as young as 300,000 years old, has already formed planetesimals, the building blocks of planets.
By Ron Cowen -
TechTechnique senses damage before it hurts
A new technique for automatically detecting damage to aircraft, buildings, and other structures may lead to practical damage-monitoring systems by reducing false alarms that make today's laboratory prototypes unsuitable for real-world use.
By Peter Weiss -
AnimalsBirds with a criminal past hide food well
Scrub jays that have stolen food from other bird's caches hide their own with extra care.
By Susan Milius -
Health & MedicineFragile X protein reveals its RNA partners
The master gene behind fragile X syndrome—the most common inherited form of mental retardation—encodes a protein that binds to strands of messenger RNA.