What are Small Worlds?
Missions & Programs
News & Events
What to Watch in 2014
News & Events
Pluto's Smallest Moons Receive Official Names
The names of Pluto's two smallest known moons, previously referred to as "P4" and "P5," have been formally approved by the International Astronomical Union (IAU).
Comet ISON Brings Holiday Fireworks
This July Fourth the solar system is showing off some fireworks of its own.
Ten Thousandth Near-Earth Object Unearthed in Space
The 10,000th near-Earth object, asteroid 2013 MZ5, was detected on June 18, 2013, by the Pan-STARRS-1 telescope.
NASA Announces Asteroid Grand Challenge
NASA announced Tuesday a Grand Challenge focused on finding all asteroid threats to human populations and knowing what to do about them.
New Horizons Team Sticking to Original Flight Plan at Pluto
Unless significant new hazards are found, expect NASA's New Horizons spacecraft to stay on its original course past Pluto and its moons,.
Small Asteroid Between Earth and Moon Tonight
Small asteroid 2013 LR6 will safely fly past this evening at 9:42 p.m. PDT
Radar Movies Highlight Asteroid 1998 QE2 and Its Moon
Scientists working with NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif., have released a second, longer, more refined movie clip of asteroid 1998 QE2 and its moon.
Traveling from one alien world to another, Dawn is reliably powering its way through the main asteroid belt with its ion propulsion system.
NASA Radar Reveals Asteroid Has Its Own Moon
A sequence of radar images of asteroid 1998 QE2 was obtained on the evening of May 29, 2013. The radar imagery revealed that 1998 QE2 is a binary asteroid.
NASA'S WISE Mission Finds Lost Asteroid Family Members
Data from NASA's Wide-field Infrared Survey Explorer (WISE) have led to a new and improved family tree for asteroids in the main belt between Mars and Jupiter.
13 Jun 2015
5th Anniversary, Hayabusa: Sample Return to Earth
22 Jun 2015
5th Anniversary, Deep Impact (EPOXI): Earth Flyby 3
04 Jul 2015
10th Anniversary, Deep Impact (EPOXI): Comet Tempel 1 Impact
10 Jul 2015
5th Anniversary, Rosetta: Asteroid Lutetia Flyby
06 Aug 2015
1st Anniversary, Rosetta: Rosetta's Rendezvous with Comet 67P/Churyumov-Gerasimenko
11 Sep 2015
30th Anniversary, ISEE-3/ICE: Traversed Plasma Tail of Comet Giacobini-Zinner
04 Nov 2015
5th Anniversary, Deep Impact (EPOXI): Comet Hartley 2 Encounter
12 Nov 2015
1st Anniversary, Rosetta: Philae Lands on Comet 67P/Churyumov-Gerasimenko
15 Jan 2016
10th Anniversary, Stardust: Earth Sample Return
30 Jan 2016
10th Anniversary, Stardust: Stardust Spacecraft in Hibernation Mode
Awards and Recognition
Solar System Exploration Roadmap
Print This Page
NASA Official: Kristen Erickson
Advisory: Dr. James Green, Director of Planetary Science
Outreach Manager: Alice Wessen
Curator/Editor: Phil Davis
Science Writer: Autumn Burdick
Webmaster: David Martin
NASA Science Mission Directorate
Budgets, Strategic Plans and Accountability Reports
Equal Employment Opportunity Data
Posted Pursuant to the No Fear Act
Information-Dissemination Policies and Inventories
Freedom of Information Act
Inspector General Hotline
Office of the Inspector General
NASA Communications Policy
NASA Advisory Council
Open Government at NASA