Are holes in the Andromeda galaxy filled with dark matter? This NASA telescope could find out

Images taken by NASA’s upcoming Nancy Grace Roman Space Telescope could allow scientists to search for dark matter among stars. An international team of researchers believes that gaps in strings of stars hanging from tightly packed spheres of old stellar bodies, called globular clusters, could be influenced by clumps of dark matter. Until now, astronomers … Read more

Our neighbor, the Andromeda Galaxy, shines overhead this week. Here’s how to tell

“In 1976, Janet and I signed up for an ‘astronomy cruise’ to Bermuda. One evening we were on deck where Fred Hess, a planetarium expert, pointed out the star patterns visible to the naked eye. Janet used her binoculars to look at the stars the objects described, and the highlight came when we saw the … Read more