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Artist concept of space weather showing an active Sun with flares and a CME in the upper right, the Earth in the lower right with types of technology affected by space weather to the lower left; satellites, airplanes, the ISS and ground-based electrical lines.
Heliophysics

Studying the Sun-Earth connection.

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Cape Verde in approximate true color
Mars

Latest from NASA's spacecraft exploring the red planet.

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On the Final Frontier
Cassini at Saturn

Unlocking the secrets of the ringed giant and its moons

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Comet Tempel 1 Nucleus Shape Model
Science Mission Directorate

NASA uses orbiting observers and robotic landers to investigate the planets, moons, comets, and asteroids of our Solar System.

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Latest Features

Artist's concept of NASA's Mars Science Laboratory spacecraft

Trajectory Maneuver Slated for Jan. 11

An engine firing on Jan. 11 will be the biggest maneuver that NASA's Mars Science Laboratory spacecraft will perform on its flight between Earth and ...

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'Greeley Haven' on Endeavour Rim

'Greeley Haven' is Winter Workplace for Mars Rover

Researchers plan to keep NASA's Opportunity rover busy through Martian winter at a sun-facing site, "Greeley Haven," where a study of the planet's ...

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Three coronagraph images of CMEs taken by SOHO with inner disk solar images taken at the same time by SDO.

SOHO "Pick of the Week" Hits Impressive Milestone

In late November, the Solar and Heliospheric Observatory's (SOHO) online 'Pick of the Week' reached an impressive milestone: its 500th edition.

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