How do cats land on their feet?

When cats fall, they flip themselves rightside-up with seemingly little effort — which has perplexed scientists for decades. Our feline friends appear to defy the laws of physics by reconfiguring themselves mid-air without intervention from another force. So how do they do it? Several factors affect how a cat is able to land on all … Read more

Quantifying U.S. health impacts from gas stoves

Households with gas or propane stoves regularly breathe unhealthy levels of nitrogen dioxide, a study of air pollution in U.S. homes found. “I didn’t expect to see pollutant concentrations breach health benchmarks in bedrooms within an hour of gas stove use, and stay there for hours after the stove is turned off,” said Stanford Doerr … Read more

‘Picky’ Parasites Alter Hosts’ Metabolism by Selectively Dining on Their Lipid Buffet : ScienceAlert

The presence of parasitic microbes has for the first time been found literally altering the metabolism of their hosts. The culprits are tiny, parasitic archaea of the species Candidatus Nanohaloarchaeum antarcticus that parasitize other single-celled organisms, the host archaeon species Halorubrum lacusprofundi. And researchers have found that these parasites are very selective about the resources … Read more

3,500-year-old ‘rest house’ used by ancient Egyptian army discovered in Sinai desert

Egyptologists have discovered the remains of a “rest house” in the northern Sinai desert. The structure may have temporarily housed ancient Egyptian forces, and possibly even royalty, during the reign of Thutmose III, or from about 1479 to 1425 B.C.  Ancient Egyptian rulers often launched military campaigns into the eastern Mediterranean, and one route Egyptian … Read more

How to Move the World’s Largest Camera from a California Lab to an Andes Mountaintop

How to Move the World’s Largest Camera from a California Lab to an Andes Mountaintop A multimillion-dollar digital camera could revolutionize astronomy. But first it needs to climb a mountain halfway around the globe By Rahul Rao A worker shines a flashlight into the Vera C. Rubin Observatory’s camera. J. Ramseyer Orrell/SLAC National Accelerator Laboratory/NOIRLab … Read more