Jupiter’s Moon Europa Might Hold Life, NASA Says
As NASA scientists continue to seek for indicators of past life on Mars, they’re also casting a hopeful eye towards finding life on one in every of Jupiter’s moons. NASA researchers have been putting some thought into what a mission to the moon Europa would consist of. What would they hope to search out and the way would they go about it? Europa’s surface is believed to be composed mainly of water ice, and NASA studies that there is proof that the icy surface could also be overlaying an ocean of water or slushy ice. Europa could have twice as a lot water as there is on Earth. The moon intrigues astronomers and scientists because it sits in what is thought because the habitable zone, a relatively small space round a star during which water could also be present in liquid form if situations are right. Jupiter, the fifth planet from the solar and the biggest planet within the photo voltaic system, has greater than 60 identified moons. "If at some point humans send a robotic lander to the surface of Europa, we have to know what to look for and what tools it should carry," stated Robert Pappalardo, a senior research scientist with NASA’s Jet Propulsion Laboratory. Post was gen erated by GSA C ontent Gener ator DE MO !
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An amputee was capable of feel smoothness and roughness in real-time with an artificial fingertip that was surgically related to nerves in his higher arm. Moreover, the nerves of non-amputees will also be stimulated to feel roughness, without the need of surgery, that means that prosthetic contact for amputees can now be developed and safely tested on intact individuals. "The stimulation felt almost like what I'd really feel with my hand," says amputee Dennis Aabo Sørensen about the artificial fingertip connected to his stump. He continues, "I nonetheless really feel my missing hand, it's all the time clenched in a fist. Nerves in Sørensen’s arm were wired to an artificial fingertip geared up with sensors. A machine managed the motion of the fingertip over completely different pieces of plastic engraved with completely different patterns, smooth or rough. As the fingertip moved across the textured plastic, the sensors generated an electrical sign. This signal was translated right into a sequence of electrical spikes, imitating the language of the nervous system, then delivered to the nerves.