Magnetars — the dense remains of dead stars that erupt sporadically with bursts of high-energy radiation — are some of the most extreme objects known in the universe. A major campaign using NASA’s Chandra X-ray Observatory and several other satellites…
Griffith Observatory is a Los Angeles-based facility that bills itself as the most-visited observatory in the world.
While many professional facilities are solely used by astronomers, Griffith has free public telescopes that are open each evening that the observatory and skies…
If a pulsing star exists near the center of our Milky Way galaxy, where a giant black hole is thought to lurk, it could shed light on the workings of Albert Einstein’s general theory of relativity, scientists say. The flashes of light from such a star, called a pulsar, could be used to determine how much the behemoth black hole distorts space-time around it.
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