Uncategorized
- Earth
Earth’s core may have hardened just in time to save its magnetic field
Earth’s inner core began to solidify sometime after 565 million years ago — just in time to prevent the collapse of the planet’s magnetic field, a study finds.
- Anthropology
Why modern javelin throwers hurled Neandertal spears at hay bales
A sporting event with replica weapons suggests that Neandertals’ spears may have been made for throwing, not just stabbing.
- Plants
How light-farming chloroplasts morph into defensive warriors
Researchers now know which protein triggers light-harvesting plant chloroplasts to turn into cell defenders when a pathogen attacks.
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