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Science Mission Directorate
NASA uses orbiting observers and robotic landers to investigate the planets, moons, comets, and asteroids of our Solar System.
More Features
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Mars Water-Ice Clouds Are Key to Odd Thermal Rhythm
06.12.13 - Researchers using NASA's Mars Reconnaissance Orbiter have found that temperatures in the Martian atmosphere regularly rise and fall not just once each day, but twice.
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NASA Spacecraft Detect a Mars-Directed CME
06.12.13 - On June 11, 2013, at 2 p.m. EDT, the sun erupted with a coronal mass ejection or CME, a solar phenomenon that can send billions of tons of solar particles into space that can affect electronic systems in satellites.
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Marks on Martian Dunes May Be Tracks of Dry-Ice Sleds
06.11.13 - NASA research indicates hunks of frozen carbon dioxide -- dry ice -- may glide down some Martian sand dunes on cushions of gas similar to miniature hovercraft, plowing furrows as they go.
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Noctilucent Clouds Get an Early Start
06.07.13 - The early start of the 2013 season appears to be caused by a change in atmospheric “teleconnections,” connections between different layers of the atmosphere that operate over great distances.
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The Sun Emits an M5.9 Solar Flare
06.08.13 - The Solar Dynamics Observatory captures the sun emitting a M5.9 class, a mid-level solar flare, peaking at 6:49pm on June 7, 2013.
News Releases
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NASA Announces Asteroid Grand Challenge
06.18.13 - NASA announced Tuesday a Grand Challenge focused on finding all asteroid threats to human populations and knowing what to do about them.
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Cassini Probe to Take Photo of Earth From Deep Space
06.18.13 - NASA's Cassini spacecraft, now exploring Saturn, will take a picture of our home planet from a distance of hundreds of millions of miles on July 19.
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NASA Invites Media to Asteroid Initiative Industry and Partner Day
06.14.13 - Deputy Administrator Lori Garver and other senior NASA officials will discuss the progress being made on NASA's mission to capture, redirect, and explore an asteroid June 18.
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NASA's Hubble Uncovers Evidence of Farthest Planet Forming From Its Star
06.13.13 - Astronomers using NASA's Hubble Space Telescope have found compelling evidence of a planet forming 7.5 billion miles away from its star, a finding that may challenge current theories about planet formation.
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Audio and Video podcasts on NASA missions exploring our solar system.
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NASACast: What's Up?
NASA's monthly guide to watching the night sky.