How the darkness and the cold killed the dinosaurs
13 hours ago
66 million years ago, the sudden extinction of the dinosaurs started the ascent of the mammals, ultimately resulting in humankind's reign on Earth. Climate scientists have now reconstructed how tiny droplets of sulfuric acid ...
How old is our moon?
Jan 13, 2017
Most scientists agree that the Earth has pretty much always had its moon. Details of the moon's composition (in particular the "isotopic mixture" of heavier and lighter versions of various elements) are too similar to the ...
When aquaculture grows, so does its economic impact
Jan 13, 2017
Farming of finfish, shellfish and plants in fresh and saltwater is the fastest-growing food production sector in the world and it's growing in Maine, too.
Image: Well-preserved impact ejecta on Mars
Jan 13, 2017
This image of a well-preserved unnamed elliptical crater in Terra Sabaea, is illustrative of the complexity of ejecta deposits forming as a by-product of the impact process that shapes much of the surface of Mars.
Varied predictions for soil organic matter as climate changes
Jan 12, 2017
The hottest months. The snowiest winters. Catastrophic floods and droughts.
Image: Hues in a Martian crater slope
Jan 05, 2017
Impact craters expose the subsurface materials on the steep slopes of Mars. However, these slopes often experience rockfalls and debris avalanches that keep the surface clean of dust, revealing a variety of hues, like in ...
Natural disaster damage hits 4-year high: Munich Re
Jan 04, 2017
Natural disasters including storms and earthquakes caused $175 billion of damage in 2016, German reinsurance giant Munich Re said Wednesday, the highest level since 2012.
3-D images reveal features of Martian polar ice caps
Jan 03, 2017
Three-dimensional subsurface images are revealing structures within the Martian polar ice caps, including previously obscured layering, a larger volume of frozen carbon dioxide contained in the south polar cap, and bowl-shaped ...
Quarter of a million tonnes of food could be saved with better logistics
Dec 27, 2016
Each year, nearly a quarter of a million tonnes of food is discarded in industry and retail in Sweden – quite unnecessarily. This is something that Chalmers researcher Kristina Liljestrand wants to do something about. She ...
Studies refute hypothesis on what caused abrupt climate change thousands of years ago
Dec 19, 2016
Two new studies in the Journal of Quaternary Science refute the hypothesis that one or more comets/bolides struck North America approximately 12,900 years ago triggering rapid climate change and the start of the Younger Dryas ...