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Planetaria changes

November 13, 2018 by Paul Scott Anderson

This is just a note about some changes I’m making with the blog. I am now doing a lot more freelance writing separate from Planetaria, …

Read MorePlanetaria changes

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High-res view of Mars 2020 landing site: Jezero Crater

April 29, 2019December 15, 2018 by Paul Scott Anderson

In 2020, the next Mars rover will be launched by NASA, the Mars 2020 mission, which will search for evidence of ancient life. The rover …

Read MoreHigh-res view of Mars 2020 landing site: Jezero Crater

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InSight’s first images from Mars!

April 29, 2019November 28, 2018 by Paul Scott Anderson

NASA’s InSight spacecraft has sent back its first images after successfully landing on Mars on November 26. The first one shows a view of the …

Read MoreInSight’s first images from Mars!

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Construction begins on ESA’s Plato planet-hunter

April 29, 2019October 15, 2018 by Paul Scott Anderson

The search for exoplanets – planets orbiting other stars – has really ramped up in recent years, with new telescopes, both space and ground-based, being …

Read MoreConstruction begins on ESA’s Plato planet-hunter

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New dwarf planet nicknamed The Goblin

April 29, 2019October 13, 2018 by Paul Scott Anderson

Astronomers have found a goblin in the far reaches of the outer Solar System. No, it’s not a mythical space-faring creature. The Goblin is the …

Read MoreNew dwarf planet nicknamed The Goblin

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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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