solar system

Report Calls for Changes to Rules About Contamination of Other Worlds

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This artist’s concept depicts astronauts and human habitats on Mars. NASA A new report has called for NASA to update its rules preventing the spread of viruses, bacteria, and other microorganisms to other planets in the course of space exploration. The report was written by the Planetary Protection Independent Review Board (PPIRB), a recently created […]

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Hubble Images Galactic Visitor, Interstellar Comet 2i/Borisov

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On 12 October 2019, the NASA/ESA Hubble Space Telescope observed Comet 2I/Borisov at a distance of approximately 420 million kilometers from Earth. The comet is believed to have arrived here from another planetary system elsewhere in our galaxy. NASA, ESA, D. Jewitt (UCLA) Hubble has captured an image of a comet that is believed to

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New Evidence Questions Whether Venus Ever Had Oceans on Its Surface

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Recently, new research surprised astronomers and the public by suggesting that millions of years ago, Venus could have been a hospitable planet with lower temperatures allowing water to exist on its surface. That would have made it more Earth-like, and some people argued it could even have supported life. A composite image of the planet

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Remains of Briny Pools Provide Further Evidence of Liquid Water on Mars

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As the Curiosity rover explores Mars’ Gale Crater, the data it collects tells us more about the history of the planet and in particular about whether liquid water once existed there. Using data collected by Curiosity, a new study has examined the geology of the crater to learn more about the briny ponds which may

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Ice on the Moon May Be Billions of Years Old, New Study Shows

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If the moon has enough water, and if it’s reasonably convenient to access, future explorers might be able to use it as drinking water or to convert it into hydrogen and oxygen for rocket fuel or oxygen to breathe. NASA’s Goddard Space Flight Center An important step toward more long-term manned missions to the moon

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Scientists Discover 20 New Moons Around Saturn

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An artist’s conception of the 20 newly discovered moons orbiting Saturn. These discoveries bring the planet’s total moon count to 82, surpassing Jupiter for the most in our solar system. Illustration is courtesy of the Carnegie Institution for Science. Saturn image is courtesy of NASA/JPL-Caltech/Space Science Institute. Starry background courtesy of Paolo Sartorio/Shutterstock. Astronomers using

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Hear the Sounds of Mars With Incredible Audio Samples From Insight

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NASA’s InSight lander may be struggling with its stuck drill, but while it is stuck in place on the Martian surface it’s still collecting a ton of useful scientific information about the planet. This week NASA released a unique set of sounds collected by the lander from its time on the red planet. InSight’s first

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Juno Performs Longest-Ever Propulsive Maneuver in Race Against Sun

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NASA’s Juno mission, launched in 2011, has collected a wealth of information about Jupiter since it arrived in 2016. It has discovered unexpectedly storm-free poles, learned about the planet’s complex weather system, observed bizarre geometric storms, and captured some truly beautiful images. And this week the craft it pulled off a feat of precision engineering,

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Is Pluto a Planet? Nasa Administrator and Brian May Reignite the Debate

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A high-resolution image of Pluto taken by New Horizons on July 14, 2015. The image has been color-enhanced to show the different geological features of the surface. NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute. In 2006 the International Astronomical Union (IAU) caused consternation when it declared that Pluto was no

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