Space Exploration

NASA Sends Tiny Atomic Clock to Space

  Traveling through space isn’t just about knowing where you are. You also need to know what time it is, and a wristwatch won’t do. Spacecraft rely on extremely accurate measurements of time to coordinate maneuvers, and these systems will become even more important as we aim for distant destinations. …

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Curiosity Detects Transient Methane Plume on Mars

The Sample Analysis at Mars (SAM) tunable laser spectrometer onboard Curiosity last week detected surprisingly high levels of the gas methane at Gale Crater: about 21 parts per billion units by volume (ppbv), the largest amount of methane the rover has ever found. Mosaic of the Valles Marineris hemisphere of …

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