NASA tracked two near-Earth asteroids, gathering vital data on their trajectories and physical characteristics using radar technology that supports ongoing planetary defense efforts. (Artistic concept.) Credit: SciTechDaily.com Deep Space Network’s Goldstone planetary radar had a busy few days observing asteroids 2024 MK and 2011 UL21 as they safely passed by Earth. Researchers at NASA‘s Jet … Read more
A stunningly fast star that is one of the oldest in the Milky Way has been spotted crossing our Milky Way by astronomers looking for something completely different. The scientists noticed that the fast star was moving at a speed of 2.1 million kilometers per hour, almost three times the speed of our own Sun, … Read more
Most stars in the Milky Way move in quiet and orderly orbits around the galactic center, but that is not the case for all of them. Every now and then a maverick is caught breaking ranks, zooming along at speeds that will eventually launch him into intergalactic space. These ‘hypervelocity’ stars are extremely rare, but … Read more