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See it! Dance of planets before dawn
Mars emerged before dawn last week, to meet Mercury below bright Venus. And then the moon passed through. Thanks to all who submitted photos!
September 19, 2017
Humans are still evolving, say scientists
Scientists have identified genetic variants less common in older people than younger people. They say it's natural selection at work, continuing to weed out disadvantageous traits.
September 17, 2017
Openings in Antarctic sea ice influence global climate
Heat escaping through openings in sea ice influences sea and atmospheric temperatures and wind patterns around the globe - even rainfall around the tropics, says new study.
September 13, 2017
Our Age of Humans in a galactic context
A proposed new classification system - somewhat like the well-known Kardashev scale for classifying extraterrestrial civilizations - and a new way of thinking about human sustainability on Earth.
September 12, 2017
NASA ponders Saturn mission legacy
A statement from NASA's Jet Propulsion Laboratory on Cassini mission success at Saturn, and on where solar system exploration will go from here.
September 11, 2017
How nuclear war would affect Earth’s climate
The climatic effect of a large-scale conflict "... would be similar to that of the giant meteor believed to be responsible for the extinction of the dinosaurs. This time, we would be the dinosaurs."
September 8, 2017
Human antidepressants found in brains of Great Lakes fish
“Fish are receiving this cocktail of drugs 24 hours a day, and we are now finding these drugs in their brains.”
September 7, 2017
How many house-sized NEOs?
A new study shows house-sized NEOs - Near-Earth Objects - to be 10 times fewer than studies had indicated. Still, there are some 3.5 million NEOs larger than 10 meters across.
September 5, 2017
Artificial intelligence probes gravity’s lens
Researchers at SLAC and Stanford have been using brain-mimicking neural networks to analyze the spacetime distortions of gravitational lenses. They say their analysis is 10 million times faster than before.
September 5, 2017
A new look at ocean worlds
Here's how the James Webb Space Telescope - successor to Hubble, due to launch in 2018 - will study Jupiter's moon Europa and Saturn's moon Enceladus.
September 4, 2017
