Recent trends in global warming are incompatible with very high climate sensitivity

[ad_1] Credit: CC0 Public Domain Research published this week in Earth system dynamics reports that the most sensitive climate models overestimate global warming over the past 50 years. Three scientists from the University of Exeter have studied the results of complex climate models and compared them to temperature observations since the 1970s. Recent developments in … Read more

Does our sun have a long lost twin?

[ad_1] Artist’s representation of our Sun, with its hypothetical solar companion.Picture: Mr. Weiss The strange configuration of the material in the far reaches of our solar system has led a team of scientists to speculate that the Sun had a companion in his early days. Curiously, this scenario could explain the presence of the hypothesis … Read more

Plastic face shields make masks better

[ad_1] Enlarge / A mask / shield combination provides enhanced protection. Covid-19 coverage See more stories One of the biggest challenges of the COVID-19 pandemic is that we just don’t know what works against the SARS-CoV-2 coronavirus. Most of the scientific studies on pandemic control have focused on the influenza virus, which differs from the … Read more

SpaceX has a record year

[ad_1] SpaceX is racking up victories this year, bolstering its role as the foremost space companies operating in the United States today – and putting pressure on the rest of the industry in a new era of spaceflight. Why is this important: Instead of being the youngster who broke all the rules, SpaceX is now … Read more

Entire cities could fit into the moon’s monstrous lava tubes

[ad_1] Mars is pockmarked with absolutely massive lava tubes, with ceilings as high as the Empire State Building, new research shows. And the moon is home to even more gargantuan tubes, with heights that surpass Dubai’s Burj Khalifa, the world’s tallest building, and “skylights” as tall as football fields. These yawning underground caverns, which are … Read more

Army, Texas A&M develops ‘Terminator’ style material that can ‘heal itself’

[ad_1] Researchers from the US Army and Texas A&M have developed a material that they say can “self-heal.” Stimulus-responsive, 3D-printable polymeric materials fueled comparisons to the shapeshifter T-1000 Terminator character from the movie “Terminator 2: Judgment Day.” The materials could be used to transform drones and robotic platforms, according to aerospace engineer Dr Frank Gardea, … Read more

100 cool worlds found near the sun

[ad_1] Artist’s impression of one of the superlative finds in this study, the oldest known wide-separation white dwarf and a pair of cool brown dwarfs. The small white orb represents the white dwarf (the remnant of a long-dead sun-like star), while the brown / orange foreground object is the newly discovered brown dwarf companion. This … Read more

Moist air can extend the life of virus-laden aerosol droplets

[ad_1] Color map showing the length of time a 100 micron droplet falling at an initial height of 1.6 meters is affected by temperature and humidity. For relative humidities (RH) and temperatures (T) below the yellow arc, the droplet will fall to the ground within the number of seconds indicated by the color scale; above … Read more