Jets are quite loud especially if they fly over your home much less for those closer like passengers or those at an airport. When jet-powered passenger aircraft first went into service in the 1950s, their engines were as loud as rock bands. Times have changed, but public dismay over jet noise has not. EurActiv reports…

Would it not be nice to take a pill and regain that elusive memory? We are all forgetful at times and without a clue as to how to get it better. Memory improved in mice injected with a small, drug-like molecule discovered by UCSF San Francisco researchers studying how cells respond to biological stress. The…

Glaciers move, or flow, downhill due to gravity and the internal deformation of ice on Earth. It is not the same when there is dry ice (frozen carbon dioxide). NASA research indicates hunks of frozen carbon dioxide — dry ice — may glide down some Martian sand dunes on cushions of gas similar to miniature…

It is hard to tell from just bones or a fossilized rock what a creature once looked like with muscles. Flesh does not survive well over the eons. Swedish, Australian and French researchers have presented for the first time miraculously preserved musculature of 380 million year old armored fish discovered in north-west Australia. This research…

Researchers using NASA’s Mars Reconnaissance Orbiter have found that temperatures in the Martian atmosphere regularly rise and fall not just once each day, but twice. “We see a temperature maximum in the middle of the day, but we also see a temperature maximum a little after midnight,” said Armin Kleinboehl of NASA’s Jet Propulsion Laboratory…

A new set of long-term climate records based on cave stalagmites collected from tropical Borneo shows that the western tropical Pacific responded very differently than other regions of the globe to abrupt climate change events. The 100,000-year climate record adds to data on past climate events, and may help scientists assess models designed to predict…

Sturgeon like fishes appeared in the fossil record approximately 200 million years ago, around the very end of the Triassic, making them among the most ancient of actinopterygian fishes. True sturgeons appear in the fossil record during the Upper Cretaceous. In that time, sturgeons have undergone remarkably little change, indicating their evolution has been exceptionally…

Nowadays Earth is perfectly lovely but once it was a barren rock. So how did life arise on such an unpromising property? In fact, new research shows that life on Earth may have come from out of this world. Lawrence Livermore scientist Nir Goldman and University of Ontario Institute of Technology colleague Isaac Tamblyn (a…

Cars are well known for their tail pipe pollution. Great efforts have been made to reduce such. But there are other sources associated with vehicles that are not normally considered. Vehicle exhausts are responsible for only a third of traffic pollution, according to new research. The study, published in Atmospheric Environment, says nearly half of…

Denitrification is a microbially facilitated process of nitrate reduction that may ultimately produce molecular nitrogen (N2) through a series of intermediate gaseous nitrogen oxide products. In general, it occurs where oxygen, a more energetically favorable electron acceptor, is depleted, and bacteria respire nitrate as a substitute terminal electron acceptor. Denitrification only takes place in anoxic…