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Studying the Sun-Earth connection.

Latest from NASA's spacecraft exploring the red planet.

Unlocking the secrets of the ringed giant and its moons

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

Latest Features

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New observations by NASA's Hubble Space Telescope of the glowing gas shroud around an old, dying, sun-like star reveal a new twist.

The sun emitted a mid-level solar flare, an M7 class, on the morning of May 22, 2013.

Forecast for Titan: Wild Weather Could Be Ahead

05.22.13 - Two new models with implications for NASA's Cassini mission suggest the onset of spring in Titan's northern hemisphere could bring waves and hurricanes.
NASA’s BARREL Mission Launches 20 Balloons

05.21.13 - In Antarctica in January, 2013 scientists released 20 balloons, to study the giant radiation belts surrounding Earth and how they lose particles, causing electrons from the belts to stream down toward the poles.
Auroras Visible in Continental U.S.

05.20.13 - Coronal mass ejections that accompanied X-class flares early last week, arrived at Earth over the weekend and sparked a geomagnetic storm and aurora.
NASA Mars Rover Curiosity Drills Second Rock Target

05.20.13 - NASA's Mars rover Curiosity has used the drill on its robotic arm to collect a powdered sample from the interior of a rock called "Cumberland."
IRIS Mission Readies For a New Challenge

05.20.13 - NASA is getting ready to launch a new mission to observe a mysterious region of the solar atmosphere that may be crucial to understanding what powers space weather.

NASA's Asteroid Sample Return Mission Moves into Development

05.16.13 - NASA's first mission to sample an asteroid is moving ahead into development and testing in preparation for its launch in 2016.
NASA Hosts Kepler Spacecraft Status Teleconference Today

05.15.13 - NASA will host a news teleconference at 4 p.m. EDT, today, May 15, to discuss the status of the agency's Kepler Space Telescope.
NASA Probe Counts Space Rock Impacts On Mars

05.15.13 - Scientists using images from NASA's Mars Reconnaissance Orbiter (MRO) have estimated that the planet is bombarded by more than 200 small asteroids or bits of comets per year forming craters at least 12.8 feet (3.9 meters) across.
NASA'S Hubble Space Telescope Finds Dead Stars 'Polluted' With Planet Debris

05.09.13 - NASA's Hubble Space Telescope has found the building blocks for Earth-sized planets in an unlikely place-- the atmospheres of a pair of burned-out stars called white dwarfs.

NASACast: Solar System

Audio and Video podcasts on NASA missions exploring our solar system.
NASACast: What's Up?

NASA's monthly guide to watching the night sky.