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Enceladus Causes Snowfall On Other Moons of Saturn

   10 hours ago  |  Universe Today

Radar evidence shows that geysers on Enceladus are ejecting water that turns to snow. The snow not only falls back on Enceladus’ surface, but also makes its way to its neighboring moons, Mimas and Tethys, making them more reflective. Researchers are calling this a ‘snow cannon.’ The Cassini spacecraft carried a powerful radar designed to …
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Venus Could Have Supported Life for Billions of Years

   10 hours ago  |  Universe Today

A new study by a team of NASA scientists indicates that Venus could have been habitable for billions of years (and still would be today) were it not for all the resurfacing!
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Hayabusa 2 has one Last Lander it?s Going to Throw at Ryugu

   21 Sep 00:00:07  |  Universe Today

JAXA recently released photos of their Hayabusa2 mission deploying target markers to the surface of the asteroid Ryugu.
The post Hayabusa 2 has one Last Lander it’s Going to Throw at Ryugu appeared first on Universe Today.

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Rosetta Saw Collapsing Cliffs and Other Changes on 67P During its Mission

   21 Sep 00:00:06  |  Universe Today

It seems that comet 67P/Churyumov?Gerasimenko is not the stoic, unchanging Solar System traveller that it might seem to be. Scientists working through the vast warehouse of images from the Rosetta spacecraft have discovered there’s lots going on on 67P. Among the activity are collapsing cliffs and bouncing boulders. Rosetta spent almost two years at 67P, …
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Yes, This is Actually the Shadow of Io Passing Across the Surface of Jupiter.

   20 Sep 00:00:04  |  Universe Today

The JunoCam onboard NASA’s Juno spacecraft continues to provide we Earthbound humans with a steady stream of stunning images of Jupiter. We can’t get enough of the gas giant’s hypnotic, other-worldly beauty. This image of Io passing over Jupiter is the latest one to awaken our sense of wonder. This image was processed by Kevin …
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A Distant Asteroid Collision Gave Earthly Biodiversity An Ancient Boost

   20 Sep 00:00:04  |  Universe Today

About 466 million years ago, there was an asteroid collision in the asteroid belt between Mars and Jupiter. The collision caused the breakup of a major asteroid, creating a shower of dust throughout the inner Solar System. That event is called the Ordovician Meteor Event, and its dust caused an ice age here on Earth. …
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Weekly Space Hangout: September 18, 2019 ? Dr. Georgiana Kramer of PSI: Space Dew and Superheroes

   19 Sep 00:00:04  |  Universe Today

Hosts: Fraser Cain (universetoday.com / @fcain) Dr. Brian Koberlein (BrianKoberlein.com / @BrianKoberlein & ) Allen Versfeld (https://www.urban-astronomer.com/ / @uastronomer) Veranika Klimovich Michael Rodruck Georgiana “George” Kramer from the Planetary Science Institute is a spectroscopist and geomorphologist, and for the last 12 years her research has focused on interpretation of data from spacecraft missions. She was a member …
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The post Weekly Space Hangout: September 18, 2019 – Dr. Georgiana Kramer of PSI: Space Dew and Superheroes appeared first on Universe Today.

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Io?s Largest Volcano, Loki, Erupts Every 500 Days. Any Day Now, It?ll Erupt Again.

   19 Sep 00:00:04  |  Universe Today

Jupiter’s moon Io is in stark contrast to the other three Galilean moons. While Callisto, Ganymede, and Europa all appear to have subsurface oceans, Io is a volcanic world, covered with more than 400 active volcanoes. In fact, Io is the most volcanically active body in the Solar System. Io’s largest volcano is named Loki, …
Continue reading "Io’s Largest Volcano, Loki, Erupts Every 500 Days. Any Day Now, It’ll Erupt Again."
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The Most Massive Neutron Star has been Found. It?s ALMOST the Most Massive Neutron Star That?s Even Possible

   18 Sep 00:01:00  |  Universe Today

Neutron stars are the end-state of massive stars that have spent their fuel and exploded as supernovae. There’s an upper limit to their mass, because a massive enough star won’t become a neutron star; it’ll become a black hole. But finding that upper mass limit, or tipping point, between a star that becomes a black …
Continue reading "The Most Massive Neutron Star has been Found. It’s ALMOST the Most Massive Neutron Star That’s Even Possible"
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Metallic Asteroids Might Have Had Volcanoes Erupting Molten Iron. That?s So Metal

   18 Sep 00:01:00  |  Universe Today

Remember the asteroid Psyche? It’s the largest known asteroid in the asteroid belt between Mars and Jupiter. It’s been in the news because of its unusual properties, and because NASA plans to launch a mission to Psyche in 2022. Psyche, aka 16 Psyche, is unusual because it’s quite different from other asteroids. Psyche appears to …
Continue reading "Metallic Asteroids Might Have Had Volcanoes Erupting Molten Iron. That’s So Metal"
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