The first image of M87* — and humanity's first image of any black hole, for that matter — was taken by the EHT in 2017 and released to the public in 2019. It was notable for its bright golden ring, ...
Rather than relying on a cheek swab or a little blood, however, these cosmic DNA tests utilize tiny ripples in the fabric of spacetime called gravitational waves, first proposed by Albert Einstein 110 ...
Jan. 13, 2025 — The night sky has always played a crucial role in navigation, from early ocean crossings to modern GPS. Besides stars, the United States Navy uses quasars as beacons. Quasars are ...