- Did A Giant Impact Create The Two Faces Of Mars? [Yes. Next!]
- Mars Crater May Actually Be Ancient Supervolcano [No. Next!]
- Red Planet's Ancient Equator Located [the real story]
- New Theory: Catastrophe Created Mars' Moons
- sidebar: Red planet's hue due to meteors, not water
"There is something of a paradox about Mars," agrees Joshua Bandfield of Arizona State University in Tempe. His team recently showed that the planet has no large deposits of carbonates, which should have formed if giant pools of water had persisted on the surface. Bandfield suggests that liquid water must have occasionally burst out of the ground, carving channels and gullies, but that it quickly froze again in the frigid Martian climate.
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