Martian geysers are putative sites of small-scale jet-like eruptions that occur in the south polar region region of Mars during the spring thaw. "Dark dune spots" and "spiders" are the two most visible types of features ascribed to these eruptions.

They are unlike any terrestrial geological phenomenon. The reflectance (albedo), shapes and unusual spider appearance of these features have stimulated a variety of hypotheses about their origin, ranging from differences in frosting reflectance, to explanations involving biological processes. However, all current geophysical models assume some sort of geyser-like activity on Mars. Their characteristics, and the process of their formation, are still a matter of debate.

These features are unique to the south polar region of Mars in an area informally called the cryptic region, at latitudes 60° to 80° south and longitudes 150°W to 310°W; this 1 meter deep ice transition area —between the scarps of the thick polar ice layer and the permafrost— is where clusters of the apparent geyser systems are located.

Josephine Foster is an American modern folk and psychedelic rock singer-songwriter and musician from Colorado. As an adolescent she worked as a funeral and wedding singer, and aspired to become an opera singer. Several years later she abandoned the idea and began to record demos of her songs, resulting in the early recordings There Are Eyes Above (2000), an album of ukulele accompanied songs strongly influenced by Tin Pan Alley, and a short album of children's songs, Little Life (2001).

For several years she worked as a singing teacher in Chicago, recording and performing with a variety of musical acts on the side including Born Heller, a duo with free jazz-bassist Jason Ajemian, and The Children's Hour a pop band formed with songwriter Andrew Bar. In 2004, joined by her occasional backing band The Supposed (Brian Goodman on guitar and Rusty Peterson on drums), she released an album of psychedelic rock called All the Leaves Are Gone on Locust Music which has drawn comparison to Patti Smith and Jefferson Airplane.[1]