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Planets that once lived only in pulp novels and movie concept art are now turning up in real data. Astronomers are not just finding distant worlds, they are cataloguing places with molten surfaces, ...

“Cloudy for the morning, turning to clear with scorching heat in the afternoon.” While this might describe a typical late-summer day in many places on Earth, it may also apply to planets outside our ...

In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest signs yet of possible life beyond our solar system, detecting in an alien ...

A new definition for the astronomical term 'planet' would apply to all alien worlds we've discovered so far, but would still leave Pluto off the list. A new and improved definition for the term ...

NASA has unveiled the most complete panoramic view yet from its Transiting Exoplanet Survey Satellite (TESS), offering a ...

LONDON-For the past 50 years, scientists have scoured the skies for radio signals from beyond our planet, hoping for some sign of extraterrestrial life. But one physicist says there’s no reason alien ...