Astronomers propose that an ultra-dense clump of exotic dark matter could be masquerading as the powerful object thought to anchor our galaxy, explaining both the blistering speeds of stars near the ...
All good things must come to an end, and so too must the world, but it turns out that astronomers think about it differently than most people.
Close-up observations of the Sun explain how solar flares start, grow, and send high-energy particles racing through space.