Uncategorized
- Earth
Gemstone Geography: New technique discerns emeralds’ beginnings
Water molecules trapped inside the minuscule channels of an emerald harbor telltale signs of the gem's geographic origin.
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Genome made quickly from scratch
Scientists have synthesized a viral genome in record time.
- Astronomy
Spying a planet in star’s dusty veil
Astronomers blocked out the light of a nearby star and found hints of an orbiting planet.
- Humans
Panel turns critical eye on testosterone
Existing evidence does not justify claims that testosterone treatments can relieve or prevent age-related problems in men, a panel of medical experts has concluded.
