Defying expectations, solar activity is back in a big way, with the number of sunspots counted on the Sun’s surface last month reaching levels not seen in nearly 23 years, more than twice the number predicted by previous forecasts. This newfound activity signals not only that the Sun is wellread more
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
A new paper from an international team of physicists has outlined the possibility that we may be able to detect the gravitational waves that spill out of a malfunctioning warp drive—provided a spacetime-bending craft belonging to one of our interstellar neighbors happens to be nearby—using technology that is already lookingread more
The elusive phenomenon known as dark matter may not actually exist, according to a University of Alabama astrophysicist, due to the possibility that gravity—an effect caused by the curving of the fabric of spacetime—may exist on its own in the absence of mass, despite the long-held assumption that gravity isread more