A deadly fever spreads

A devastating disease caused by airborne fungal spores is colonizing the Southwest in what the Centers for Disease Control and Prevention calls “a silent epidemic.” The disease, coccidioidomycosis, or valley fever, strikes more than 20,000 people per year in the region, 10 times the number it did 15 years ago. The spores live in the soil until wind lifts them […]

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Tracing The Moon’s Origins

Some new thinking may have brought astronomers a step closer to solving the mystery of how our moon formed. Researchers have long believed that the moon was cleaved from a Mars-sized planet that collided with Earth some 4.5 billion years ago. Yet recent tests of lunar rock samples suggest that the moon’s chemical makeup is too similar to Earth’s to […]

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