We are used to seeing her in midi-skirts and formal gowns, but Beatrice Borromeo switched her familiar royal wardrobe for tailoring to take her seat on the front row at the Dior Haute Couture show in ...
Besides stars, the United States Navy uses quasars as beacons. Quasars are distant galaxies with supermassive black holes, surrounded by ... X-Ray Flashes from a Nearby Supermassive Black Hole ...