Planetary Geology

Barely a day goes by when some new discovery is announced about our Solar system – the planets, asteroids, comets, meteorites, extra-solar visitors. Images of the unexpected. A wealth of data, literally years worth, collected by active and retired satellites – field excursions to deeper space and different worlds, rovers landing on specks of dust. And the images – astounding views of such distant places. The excitement is palpable.

Comets; portents of doom or icy bits of space jetsam?

Sand dunes but no beach; A Martian breeze

A watery Mars: Canals, a duped radio audience, and geological excursions

Which satellite is that? What does it measure?

Life on Mars; what are we searching for?

Io; Zeus’s fancy and Jupiter’s moon

 

 

The origin of life; Panspermia, meteorites, and a bit of luck

Near Earth Objects; the database designed to save humanity

Subcutaneous oceans on distant moons; Enceladus and Europa

 

 

Visualizing Mars landscape in 3 dimensions; stunning images from HiRISE

Martian organics; One more step in the right direction

There are more exoplanets than stars in the universe

Witness to an impact

Ceres; promoted to dwarf planet

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