A group of citizen scientists has discovered 95 "cool worlds" near the sun, celestial objects much larger than planets but lighter than stars, known as brown dwarfs, according to a new study. |
NASA satellite images show Tropical Storms Marco and Laura swirling in the Gulf of Mexico and drenching Hispaniola, respectively. | An AI pilot defeated a human pilot in a clean sweep of virtual reality dogfights, with experts hailing the victory as a significant moment for artificial intelligence, sources reported. |
One of the world's largest diamonds has been unearthed in Africa -- a 442-carat rock worth as much as $18 million, according to one expert. | Researchers examining a nearly complete skeleton of a 240-million-year-old "megapredator" have found another large reptile in its stomach. |
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