The Milky Way is a barred spiral galaxy roughly 100,000 light-years in diameter, housing up to 400 billion stars. Our Solar System sits in the Orion Arm, orbiting the center at 220 km/s. Recent 2025 ...
Astronomers made a remarkable discovery—one of the biggest pair of jets that appear to shoot from behind a supermassive black hole 7.5 billion light-years from Earth. Using some quick arithmetic, ...
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