| | May 25 Is Pluto Made of a Billion Comets? | | | |
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| Is Pluto made of a billion comets? | | By comparing data from the 1st-ever Pluto flyby and a 1st-ever comet rendezvous mission, scientists have developed what they call ‘the giant comet’ model of Pluto formation. | | | | | Astronauts’ views of Mount Shasta | | Astronauts aboard the International Space Station captured these images of Mount Shasta while orbiting over northern California at different times of the year. | | | Scientists track major freshwater change | | 'What we are witnessing is major hydrologic change,' they said. Over 14 years, Earth's wet land areas got wetter. Dry areas got drier. They also reported multiple hot spots resulting from groundwater depletion. | | | | | |
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| The EarthSky Store | | Help us keep presenting your world, and cosmos, to you. Plus get some cool astronomy swag while doing so! | | | | | |
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| | | Moon and Jupiter | On Friday night, you'll also notice a bright star near the moon, Spica in the constellation Virgo. | | | | |
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| | Mount Shasta from space | An astronaut aboard the International Space Station snapped this photo of California's Mount Shasta poking out of the fog-filled valleys of the Klamath Mountains. Mount Shasta is an active volcano that has erupted at least once per 800 years for the past 10,000 years. | | |