23 articles
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Astronomers have discovered evidence of runaway supermassive black holes, propelled by gravitational wave recoil from collisions, traveling at high speeds through and between galaxies. While one entering our solar system is possible, the odds are extremely low.
Satellites captured the Feb. 17 annular solar eclipse over Antarctica, where the moon blocked most of the sun, leaving a "ring of fire." The next major eclipse is a total lunar eclipse on March 3.
JWST captured a stunning image of a "cosmic jellyfish" galaxy from 8.5 billion years ago. Its trailing gas tendrils, formed by ram-stripping, challenge assumptions about early galaxy cluster environments.
Astronomers used Hubble and Chandra to hunt for wandering black holes in dwarf galaxies. Finding them could reveal a "fossil record" of early black hole seeds, helping explain how supermassive black holes grew so quickly in the early universe.
On Feb. 19, look west at sunset to see a thin crescent moon near Saturn. You might also spot Mercury and Earthshine on the moon.
Astronomers discovered CDG-2, a "dark galaxy" where dark matter makes up 99% of its mass. It was found using Hubble and Euclid telescopes by detecting its faint glow and globular clusters.
Webb telescope data reveals new details about Uranus's tilted magnetic field and cooling upper atmosphere, advancing our understanding of ice giants.
Astronomers observed a massive star in Andromeda skip a supernova and collapse directly into a black hole, providing the most detailed view yet of how stellar black holes form.
Astronomers found a planetary system with a rocky outer planet, challenging the theory that only gas giants form far from stars. This suggests planets may form sequentially, not all at once.
Scientists found a fast-spinning pulsar near our galaxy's central black hole. If confirmed, its precise pulses could test Einstein's gravity theory under extreme conditions.