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Experiments in Space

Device could help detect signs of extraterrestrial life

Credit: Adapted from Analytical Chemistry 2020, DOI: 10.1021/acs.analchem.0c01628 Although Earth is uniquely situated in the solar system to support creatures that call it home, different forms of life could have once existed, or

Surprise on Mars

Credit: NASA / JPL An observer standing on Mars would see the planet's moon Phobos cross the sky from west to east every five hours. Its orbit passes between the sun and any given point on Mars about once each Earth year. Each time it does…