All Stories
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AnthropologyNew dating suggests younger age for Homo naledi
South African fossil species lived more recently than first thought, study suggests.
By Bruce Bower -
Planetary ScienceNew clues in search for Planet Nine
Lots of unknowns remain as researchers try to pin down where a possible ninth planet might be hiding in the solar system.
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Planetary ScienceThe Juno spacecraft is now in orbit around Jupiter
NASA’s Juno spacecraft successfully entered orbit around Jupiter, beginning a 20-month investigation of the giant planet’s interior.
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Planetary ScienceThe Juno spacecraft is now in orbit around Jupiter
NASA’s Juno spacecraft successfully entered orbit around Jupiter, beginning a 20-month investigation of the giant planet’s interior.
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Planetary ScienceMars once had many moons
Mars' moons might be the only two left of a larger family of satellites that helped them form in the wake of an asteroid collision.
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NeuroscienceRewarding stimulation boosts immune system
Activating feel-good nerve cells boosts mice’s immunity, a new study suggests.
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LifeLetting parasites fight could help battle drug resistance, too
Helping one strain of malaria trounce another in lab mice demonstrates a way of avoiding the evolution of drug resistance.
By Susan Milius -
ClimateWarming alters mountain plant’s sex ratios
Global warming has different effects on male and female plants. Tracking sex ratio shifts could be a fast signal of climate change, researchers say.
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Planetary ScienceJuno spacecraft is on its final approach to Jupiter
Everything looks good for the Juno spacecraft, which arrives at Jupiter on July 4.
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ClimateDespite volcanic setback, Antarctic ozone hole healing
The September extent of the Antarctic ozone hole has shrunk by about 4.5 million square kilometers since 2000, thanks in large part to the Montreal Protocol.
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AnimalsFrigate birds fly nonstop for months
The great frigate bird can fly for up to two months without landing, thanks to a boost from wind and clouds.
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AnimalsSneaky male fiddler crabs entrap their mates
Some male banana fiddler crabs get a female to mate with them by trapping her in their burrow, a new study finds.