Science

Using 3D images, biologists at Imperial College London, UK, have shown how bacteria have evolved their ‘flagellar’ motors of different powers to optimize their swimming. Flagellar motors of Wolinella succinogenes, Arcobacter butzleri, and Bdellovibrio bacteriovorus. ‘B,’ ‘M,’ and ‘P’ labels depict Basal disk, Medial ring, and Proximal rings respectively. Image …

An international group of researchers has demonstrated that sauna bathing for 30?min reduces blood pressure and increases vascular compliance, while ‘also increasing heart rate similarly to medium-intensity exercise.’ The findings are published in the Journal of Human Hypertension and the European Journal of Preventive Cardiology. Sauna bathing is good for …

According to a new study published in the journal Circulation, proper exercise can reverse damage to sedentary, aging hearts and help prevent risk of future heart failure — if it’s enough exercise, and if it’s begun in time. Regular exercise training may provide protection against the future risk of heart …

NASA has released beautiful new images of Jupiter’s turbulent atmosphere from the tenth close flyby of its Juno spacecraft. This illustration depicts Juno soaring over Jupiter’s swirling cloud tops. Image credit: NASA / JPL-Caltech / SwRI / MSSS / Kevin M. Gill. Juno launched on August 5, 2011, from Cape …

An international team of scientists led by Professor Hanns-Christian Gunga of Charité-Universitätsmedizin Berlin has observed that astronauts run hot when exposed to weightlessness, and that, even at rest, their core body temperature is around one degree Celsius above the normal value. The results appear in the journal Scientific Reports. Stahn …

Astronomers have been able to detect scores of exoplanets in orbit of distant stars, but actually taking pictures of them is extremely difficult. To date, only a few dozen exoplanets have been directly imaged, and only those with very large diameters can be spotted at all. A new technology discussed …

An analysis of so-called pukao — colossal stone hats of monumental statues (moai) on Easter Island — provides evidence contrary to the widely held belief that the ancient civilization had a warrior culture. Easter Island, known as Rapa Nui to its earliest inhabitants, is one of the most remote inhabited …

China’s first space station had a good run, but it’s about time for the Tiangong-1 to pack it in. China reports the station will fall out of orbit sometime in March, but it doesn’t know exactly when or where that will happen. There is some concern that pieces of the …

Machine learning can be used to recognize faces, drive cars, and even spot exoplanets, but now Google is teaching its computers to do something even more unexpected. Researchers at Google have developed a way to predict a person’s blood pressure, age, and smoking status from an image of their retina, …

While humans generally prefer individuals who are nice to others, a new study finds bonobos (Pan paniscus) — our closest relatives in the animal kingdom along with chimpanzees — are more attracted to jerks. Duke University scientists Christopher Krupenye and Brian Hare were surprised by their findings because bonobos have …