The first spacewalk by a civilian was conducted on September 12 by tech billionaire Jared Isaacman, an activity that has, until now, been the exclusive domain of professional astronauts, cosmonauts and taikonauts. On September 10 the Crew Dragon capsule Resilience that carried Isaacman and his three crewmates into orbit was launched atop one ofread more
Four years ago a team of scientists found potential evidence of life in the atmosphere of our closest planetary neighbor, Venus, despite the metal-meltingly hot temperature and crushing pressure experienced on the surface; however, this discovery was followed shortly afterward by a dismissal of the claims, after subsequent searches failed to yieldread more
New evidence for a massive, high-altitude explosion caused by a comet impacting the Earth’s atmosphere over North America 12,900 years ago—referred to as the Younger Dryas impact—has been unveiled, following an analysis of fractured quartz crystals discovered at sites along the U.S. east coast of that appear to have been affected by a meteor impact. Shortly after theread more
Yet another key ingredient in the recipe for biological life has been found on Saturn’s icy moon, Enceladus, a chemical compound that, in addition to being a potential energy source for primitive organisms, could also act as a basis for the formation of organic molecules that are essential for the formationread more