Posts by

Paul Scott Anderson

What the Chinese Zhurong rover found beneath Mars’ surface

China's Zhurong rover has found polygonal wedges below the surface in Utopia Planitia on Mars. Freeze-thaw cycles of water and ice likely created the polygons.

Paul Scott Anderson

December 3, 2023

1st planet-forming disk discovered in nearby galaxy

For the first time, astronomers have discovered a planet-forming disk around a young star in another galaxy outside our own Milky Way galaxy.

Paul Scott Anderson

December 3, 2023

Space Force to track ‘abnormal objects of unknown origin’

The U.S. Space Force wants to track objects near Earth that exhibit 'abnormal observables' and are of 'unknown origin.' Could there be a connection to UAP?

Paul Scott Anderson

November 30, 2023

Nearby exoplanet is Earth twin, but hot as a pizza oven

Astronomers using the Hubble Space Telescope measured the exact diameter of a nearby Earth-sized exoplanet. The sizzling world is too hot for life, however.

Paul Scott Anderson

November 29, 2023

Shrinking exoplanets? Here’s how it happens

Scientists say they may have solved the mystery of shrinking exoplanets. Radiation from the cores of less massive sub-Neptunes pushes away their atmospheres.

Paul Scott Anderson

November 26, 2023

‘Bouncing comets’ could spread the seeds of life

Researchers in the U.K. said in a new study that 'bouncing comets' in some planetary systems could deliver prebiotic molecules needed for life to young planets.

Paul Scott Anderson

November 24, 2023

Salt glaciers on Mercury could harbor habitable niches

Researchers have found evidence of glaciers on Mercury. They are composed of salt, not ice, and could potentially create habitable niches for microorganisms.

Paul Scott Anderson

November 22, 2023

Are Eris and Pluto different on the inside?

Dwarf planets Eris and Pluto are outwardly similar. But a new study suggests they are quite different on the inside, and that they evolved differenly.

Paul Scott Anderson

November 21, 2023

Are 2 huge blobs inside Earth due to an ancient impact?

A new study from an international team of researchers says that 2 huge blobs inside Earth came from the collision with the planet Theia billions of years ago.

Paul Scott Anderson

November 13, 2023

Jupiter’s moon Ganymede is coated in salts and organics

NASA's Juno spacecraft has found salts and organics on Jupiter's largest moon, Ganymede. They suggest that watery brines came up to the surface from deep below.

Paul Scott Anderson

November 12, 2023

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Paul Scott Anderson

Paul Scott Anderson has had a passion for space exploration that began when he was a child when he watched Carl Sagan’s Cosmos. While in school he was known for his passion for space exploration and astronomy. He started his blog The Meridiani Journal in 2005, which was a chronicle of planetary exploration. In 2015, the blog was renamed as Planetaria. While interested in all aspects of space exploration, his primary passion is planetary science. In 2011, he started writing about space on a freelance basis, and now currently writes for AmericaSpace and Futurism (part of Vocal). He has also written for Universe Today and SpaceFlight Insider, and has also been published in The Mars Quarterly and has done supplementary writing for the well-known iOS app Exoplanet for iPhone and iPad.