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Europa

An easier way to search for life on Europa

August 5, 2018August 5, 2018 by Paul Scott Anderson

When it comes to the question of what places in the Solar System would be the best to search for alien life, Europa immediately comes …

Read MoreAn easier way to search for life on Europa

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New evidence for water vapour plumes on Europa discovered in old Galileo mission data

May 19, 2018 by Paul Scott Anderson

For decades, Jupiter’s moon Europa has fascinated scientists and the public alike after it was learned that a global water ocean lies beneath the icy …

Read MoreNew evidence for water vapour plumes on Europa discovered in old Galileo mission data

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NASA live science chat tomorrow: New evidence for water vapour plumes on Europa?

May 13, 2018May 13, 2018 by Paul Scott Anderson

NASA will be hosting a live stream update tomorrow about Jupiter’s moon Europa with new analysis as to the habitability of this ocean world. Tune …

Read MoreNASA live science chat tomorrow: New evidence for water vapour plumes on Europa?

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Balancing cost and science: NASA examines less expensive mission design for Europa lander

September 23, 2017 by Paul Scott Anderson

The push for a return mission to Jupiter’s moon Europa has been gaining steam in the last few years, with NASA now planning for Europa …

Read MoreBalancing cost and science: NASA examines less expensive mission design for Europa lander

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A new look at ‘ocean worlds’: James Webb Space Telescope will target Europa and Enceladus

September 2, 2017 by Paul Scott Anderson

NASA’s upcoming James Webb Space Telescope (JWST) will be used to study two of the most fascinating moons in our Solar System  – Europa and …

Read MoreA new look at ‘ocean worlds’: James Webb Space Telescope will target Europa and Enceladus

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About Planetaria

About Planetaria



Pluto backlit by the Sun, as seen by New Horizons in 2015

Planetaria (formerly The Meridiani Journal) is a chronicle of planetary exploration, both in our own Solar System and beyond. Many continuing discoveries, such as the geysers of Enceladus, the subsurface ocean of Europa, the methane rivers, lakes and seas of Titan, the mountains and glaciers of Pluto, the cold but beautiful deserts of Mars and the thousands of exoplanets orbiting other stars make this an exciting time of exploration and discovery.

I publish Planetaria as a personal blog, a complement to my other freelance space writing for EarthSky and AmericaSpace.

- Paul Scott Anderson

Exoplanet Count

Exoplanet Count

Current Confirmed: 3,946
Current Candidates: 3,520
Potentially Habitable: 49

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