Mozart performance for Colorado Music Festival: 6:30 p.m., Chautauqua Auditorium, 198 Morning Glory Drive, Boulder. Closing ...

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Barnard’s Star hosts four hostile small planets whose unusual chemistry and orbital rhythm reveal how compact planetary ...

Astronomers have uncovered a pair of giant planets that are lighter than cotton candy — super-puffs the size of Jupiter. The featherweight pair — orbiting a star 1,110 light-years away — are the ...

The planetary alignment will be visible in the western sky after sunset from June 11 to June 15. While the term "planet parade" is not official, it refers to when multiple planets appear to line up in ...

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published in the journal Icarus, this extra world might have triggered a violent ...

NASA Administrator Jared Isaacman has reiterated his support for Pluto to be reclassified as a planet. Pluto was downgraded to a dwarf planet in 2006 because it has not cleared its orbital path of ...

Astronomers have identified more than 10,000 candidate planets in data from a NASA telescope, the most ever found in a single haul. NASA’s Transiting Exoplanet Survey Satellite (TESS) was launched in ...

Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known exoplanets that may have the right conditions to support life. Using new ...

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A researcher discovered the rare cosmic event by noticing strange dips in a star's brightness in old telescope data. The collision created a hot cloud of rocks and dust, which researchers detected ...

Anastasios (Andy) Tzanidakis was combing through old telescope data from 2020 when he found an otherwise boring star acting very strangely. The star, named Gaia20ehk, was about 11,000 light-years from ...