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Close Approach Comets Poster
Solar System, Sky Watching
Apr 20, 2017
In 2017 and 2018, three comets will pass near the Earth providing the opportunity to observe and study these icy interlopers.
Universe, Earth, Sun, Solar System
Apr 13, 2017
We once thought oceans made our planet unique, but we’re now coming to realize that ‘ocean worlds’ are all around us.
Ocean Worlds Poster
Solar System, Sky Watching
Apr 6, 2017
Stop what you’re doing and mark your calendar. Jupiter can be viewed at opposition from sunset on April 7, 2017 to sunrise on April 8, 2017.
Solar System, Sky Watching, Meteor Showers
Dec 30, 2016
Earth will pass through a stream of debris from comet 2003 EH1 on January 3, 2017, producing a shower of meteors known as the Quadrantids.
New Year's Fireworks Poster 1
Solar System, Sky Watching
Oct 14, 2016
Nothing beats a bright and beautiful "supermoon." Except maybe, three supermoons! 2016 ends with a trio of full moons at their closest points to Earth.
2016 Ends with Three Supermoons Poster 1
Solar System
Sep 7, 2016
NASA's OSIRIS-REx spacecraft is scheduled to launch on a mission to orbit, map and collect samples from the asteroid Bennu, and return to Earth 7 years later.
ScienceCasts: To Bennu and Back Poster 1
Solar System, Sky Watching
Aug 23, 2016
Venus and Jupiter are converging for a spectacular conjunction in the sunset sky on August 27th.
Solar System, Mars, Planets of Our Solar System
Aug 1, 2016
NASA is sniffing out the sweet smell of methane on Earth, Mars and beyond. It's a greenhouse gas and, in some places, possibly a sign of life.
Methane Stinks Poster 1
Solar System
Jun 30, 2016
NASA's Planetary Defense Coordination Office is working to keep Earth safe from asteroids and other hazards that come from deep space.
Solar System, Mars, Planets of Our Solar System, Sky Watching
May 20, 2016
Mars and Saturn are getting together in the constellation Scorpius for back-to-back oppositions in May and June 2016.
Red and Golden Planets Poster
Solar System
Mar 10, 2016
When the Space Age began, explorers were eager to visit the planets of the solar system. As the years have passed, however, astronomers have realized that the moons of the solar system may be even more interesting.
Amazing Moons Poster 1
Solar System, Planets of Our Solar System, Sky Watching
Mar 4, 2016
On March 8th, 2016 Earth and Jupiter will have a close encounter. The giant planet will be "up all night," soaring almost overhead at midnight and not setting until the sky brightens with the twilight hues of sunrise on March 9th. In July, the Juno mission will give us an even closer look.
Close Encounters with Jupiter Poster
Solar System, Planets of Our Solar System
Oct 27, 2015
NASA's Cassini Spacecraft is about to make a daring plunge through one of the plumes emerging from Saturn's moon Enceladus.
Close Encounter with Enceladus Poster
Solar System, Sky Watching
Oct 23, 2015
Look east before sunrise in late October for a beautiful conjunction of bright planets.
Dawn Triangle of Planets Poster
Solar System
Sep 22, 2015
On Sunday, Sep. 27th, the super Harvest Moon passed through the shadow of Earth, producing a lovely amber total lunar eclipse.
Total Eclipse of the Harvest Moon Poster