Science

Washington (AFP) – Test monkeys infected with the new coronavirus responsible for the COVID-19 pandemic were protected from reinfection until 28 days later, a Chinese study said Thursday in the journal Science. Although the monkeys showed initial immunity, it is unclear how long such immunity will last in humans: it …

Image copyright AFP / Getty Images The government has confirmed that people arriving in England from countries such as France, Spain, Germany and Italy will no longer have to be quarantined as of July 10. A full list of exempt countries presenting “reduced risk” of coronavirus will be released on …

In our solar system, the “ice giants” Neptune and Uranus are much less dense than the rocky Venus and Earth. But astrophysicists on NASA’s TESS mission have found an exoplanet, TOI-849b, which appears to be 40 times more massive than Earth, but just as dense. This illustration shows the exoplanet, …

“The astronomy community was not ready for this, and certainly not funded for it,” said Tony Tyson, chief scientist at the Rubin Observatory. SpaceX did not respond to requests for comment. Starlink is a satellite-based Internet constellation intended to cover the planet in high-speed broadband, and is often touted as …

A larger scale shows how uromodulin filaments (blue) envelop an E. coli cell, thus preventing the pathogen pili from trapping on cell walls in the urinary tract and causing an infection. The image is a 3D visualization from electron tomography measurements. Credit: Gregor Weiss / ETH Zurich Some people are …