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Opportunity has reached a 14-mile-wide crater on Mars.
This week, NASA announced that Spirit, one of the twin Mars Exploration Rovers, appears to be permanently stuck in Martian soil, and that the rover would now be used only as a stationary observation platform.
We'll check on the progress of the Mars rover mission. While new data collected by rover Opportunity during its exploration of Victoria Crater was published this week, the Spirit rover appears to be stuck.
In this segment, we'll get the big picture on science on the planet Mars. From orbiting observatories to roving rovers to the ditch-digging Phoenix -- what have planetary scientists learned about Mars, and what remains to be discovered?
The nautilus, the “living fossil” of cephalopods, can uncover the origins of the...
Could a stash of ancient bones be the work of a giant cephalopod?
In less than a second, cephalopods can change the color, pattern and shape of th...
Biologist Sarah Zylinski studies how cuttlefish see the world by looking at thei...
\tWith its heavy outer shell, weak vision, and primitive brain, the nautilus lacks much of the excitement of the more flashy and cunning cephalopods. Yet a series of experiments by evolutionary biologists Dr. Jennifer Basil and Robyn Crook involving fish juice, blue lights, and mazes dispels the notion that this ancient species is incapable of basic learning and throws into question the origins of cephalopods' intellectual prowess.