Over the past few decades, seven criteria have been established for the recognition of past life within terrestrial geologic samples.

Through the long Alaska summer days, they took chemical and geologic samples, shot photographs, and made rough maps.

It succeeded in retrieving biologic and geologic samples from the ridge, a robotic first.

It contains geologic samples, fossils, a mastodon skeleton, Native American artifacts, and a mummy.

A moon rock, meteorite and other geologic samples are on display.

He also spent time collecting geologic samples that would provide valuable information on the moon's early history.

It is also used to place sensors on the seabed and to take geologic samples.

For general acceptance of past life in a geologic sample, essentially most or all of these criteria must be met.

The team included scientists, educators, and resource managers, with the goal of documenting species, taking geologic samples, and describing the ocean environment.

To demonstrate a robot that can locate and retrieve geologic samples from a wide and varied terrain without human control.