Phil Christensen

Articles by: Phil Christensen

Holden crater's wide floor, shown in a newly released image, has abundant layered sediments, channels, and large piles of debris at canyon mouths. These suggest a long history of deposits by water.

Exploring Mars: A Crater Where Water Ran

By Robert Burnham, Phil Christensen published

Holden's wide floor has abundant layered sediments, channels, and large piles of debris at canyon mouths. These suggest a long history of deposits by water.

Exploring Mars: The Snows of Udzha

Exploring Mars: The Snows of Udzha

By Robert Burnham, Phil Christensen published

Exploring Mars: Wind-Eroded Sediments in Eastern Meridiani

Exploring Mars: Wind-Eroded Sediments in Eastern Meridiani

By Robert Burnham, Phil Christensen published

DO NOT POST - Dunes and Ice in Mars' Chasma Boreale

Exploring Mars: Dunes and Ice in Mars' Chasma Boreale

By Robert Burnham, Phil Christensen published

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