Uncategorized
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EarthBursting in Air: Satellites tally small asteroid hits
On average, a small asteroid slams into Earth's atmosphere and explodes with the energy of 1,000 Hiroshima-size blasts once every thousand years or so, a rate that is less than one-third as high as scientists previously supposed.
By Sid Perkins -
Planetary ScienceLeapin’ Lava! Volcanic eruption on Io breaks the record
Pointing a ground-based telescope at Jupiter's moon Io, astronomers have recorded the most powerful volcano ever observed in the solar system.
By Ron Cowen -
Life or Death: Immune genes determine outcome of strep infection
Subtle variations among people's immune genes may largely account for radically different outcomes when people get a strep infection.