Tags: space, stickney, crater, massive, depression, phobos, moon, mars
Tags: space, stickney, crater, mars, moon, phobos, reconnaissance, orbiter
Tags: space, stickney, crater, phobos, nearly, half, diameter, moon, gravity, earths, meaning, inch, vertical, jump, earth, feet
Tags: space, stickney, crater, martian, moon, phobos
Tags: space, stickney, crater, phobos, moon, mars, imaged, reconnaissance, orbiter
Tags: infrastructure, stickney, water, reclamation, plant, chicago, illinois
Tags: space, image, stickney, crater, largest, martian, moon, phobosis, named, mathematician, chole, angeline, nearly, half, diameter, phobos