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Astronomers discover giant alien planet 35 times more massive than Earth hiding in a known star system
The newfound exoplanet, called Kepler-139f, is a gigantic world roughly twice the mass of Neptune and 35 times the mass of ...
One survey by NASA's Roman could unveil 100,000 cosmic explosions
Scientists predict one of the major surveys by NASA's upcoming Nancy Grace Roman Space Telescope may reveal around 100,000 celestial blasts, ranging from exploding stars to feeding black holes. Roman ...
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The biggest black hole smashup ever detected challenges physics theories
Gravitational waves spotted by LIGO reveal two black holes, 140 and 100 times the mass of the sun, merged to become a 225 solar mass behemoth.
Scores of exoplanets may be larger than realized
In new research, University of California, Irvine astronomers describe how more than 200 known exoplanets are likely much ...