The recent ORBITA trial on the efficacy of angioplasty ("Stent dent", published on May 28) threw up a surprising finding; people who were treated with a sham procedure showed as much improvement as those who had angioplasty.
A recent Zika epidemic in Brazil led to hundreds of babies with mental disability. Now, scientists have combined thousands of two-dimensional images of the Zika virus to come up with a detailed three-dimensional image of it, research published in the journal, Structure, says.
Dr Joshua Clayton, a 29-year-old radiology resident at Baylor University Medical Center in Dallas, US, wanted to learn about his ancestry. So he sent a sample of his saliva to 23andMe, the genetic testing company.
When a reddish cigar-shaped rock came spinning through the solar system last October, scientists could not figure out what it was. It didn't have a comet's tail so it must be an asteroid. Later studies have, however, shown that the Oumuamua is indeed a comet but with an invisible tail. Like all comets, the gases in its tail fired its exit from the solar system.
By combining data from NASA's Hubble Space Telescope and the European Southern Observatory's Very Large Telescope, astronomers have shown that gravity in this galaxy behaves as predicted by Albert Einstein's general theory of relativity. While the theory has passed a series of tests within the solar system, there have been no precise tests of it on large astronomical scales.
What would happen if you froze a flower to near absolute zero temperature - that is -273° Celsius? It would disintegrate. A banana cooled to that temperature would become rock solid and could be used to hammer a nail into a piece of wood. Nobel laureate Wolfgang Ketterle demonstrated these fascinating features of ultracold matter at a public lecture in Calcutta to commemorate the 125th anniversary of physicist Satyendranath Bose.
Hungarian researchers have found that artists tend to paint lightning with fewer branches than the bursts of electricity actually have. A study published in Proceedings of the Royal Society A found the pictures and paintings differed mainly in the number of root-like offshoots.
Thomas Adams, a palaeontologist from Texas, United States, remembers the first time he saw Jurassic Park. And the second, and the third, and the fourth. They were, after all, all in the same month - and led to him quitting his job as a record store manager to study dinosaurs.