Images

3.5 billion years old stromatolites. Searching for life on Mars using Mars analogs in Australia.

This photograph is of the seafloor off the Massachusetts coast and shows a lobster as well as boulders and sediment covered in seaweed, bubblegum algae and red filamentous algae.

Jim Crowley (USGS) searching for life on Mars using Mars analogs in Australia.

This photo shows foxtail pine cones in different stages of development. The small, tightly closed purplish cones are the most recently formed, the ones on the right older but not yet opened, and the one in the center of the image has already opened and dropped its seeds, which are tucked at the base of the scales.

Production level in the Ray porphyry copper mine, AZ.

Cliff dwelling known as Square Tower House in Mesa Verde National Park. (Scanned From Negative)

Cliff dwelling known as Square Tower House in Mesa Verde National Park. (Scanned From Negative)

USGS researcher, Dr. Windham-Myers, collecting a white rice sample after 2 months of growth.

A diversity of birds forage for small fish and invertebrates on fallow fields throughout the year.

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

The leaves, buds, tendrils, and flowers of a passion flower vine (Passiflora). (Scanned From Negative)

Snake cactus that has wrapped itself about the trunk of a Sabal palm on the Gulf coast of Florida. (Scanned From Negative)

Birds found in and around the Salton Sea, California.

The leaves and flowers of the popular tropical tree, Plumeria. This specimen in Florida has been employed as a landscape ornamental. (Scanned From Negative)

One of the largest living gumbo limbo trees (Bursera simaruba).

Leaves and purple flowers of a Morning-glory as it colonizes the sands of a coastal dune on a Gulf coast barrier island. (Scanned From Negative)

Leaves and purple flowers of a railroad vine (beach morning-glory) as it colonizes the sands of a coastal dune on a Gulf coast barrier island