Solar System Exploration
By The Numbers
By The Numbers
ON THIS PAGE
By The Numbers
By The Numbers
From our perspective on Earth, Mercury looked like a tiny black dot gliding across the Sun’s face.This only happens about 13 times a century.
Mercury Transit in Pictures
Highlights of the November sky include how to watch as Mercury transits the Sun on Nov. 11, plus how to observe the regular dimming and brightening of the "Demon star," Algol, with your own eyes.
What's Up: November 2019
The next full Moon will be on Sunday afternoon, October 13, 2019, The Moon will appear full for about three days centered on this time, from Saturday morning to Tuesday morning.
October 2019: The Next Full Moon is the Hunter's Moon
Earth’s Moon and Mercury, the closest planet to the Sun, may contain significantly more water ice than previously thought.
The Moon and Mercury May Have Thick Ice Deposits
Our solar system is a stormy place. Join us on a tour of storms.
10+ Things: Tour of Storms Across the Solar System
Scientists have found evidence that Mercury’s inner core is indeed solid and that it is very nearly the same size as Earth’s inner core.
Discovery Alert: A Closer Look at Mercury's Spin and Gravity Reveals the Planet's Inner Solid Core
This site is among seven NASA sites nominated this year for a Webby. People's Voice voting is underway.
NASA Garners 7 Webby Award Nominations
Whether you're doing it for the nerd cred or the pie, this week on #10Things, we've got all the ways you can celebrate #PiDay with NASA.
10 Ways to Celebrate Pi Day with NASA on March 14
Just as dust gathers in corners and along bookshelves in our homes, dust piles up in space too. But when the dust settles in the solar system, it’s often in rings.
What Scientists Found After Sifting Through Dust in the Solar System
The next full Moon will be on Feb. 19, 2019.
February 2019: The Next Full Moon is the Crow Moon
The boom carrying the magnetometer sensors onboard ESA's BepiColombo Mercury Planetary Orbiter (MPO) has been deployed. The spacecraft can now measure the magnetic field on the way to Mercury.
BepiColombo Magnetometer Boom Deployed
The ESA-JAXA BepiColombo mission to Mercury blasted off on an Ariane 5 from Europe's Spaceport in Kourou at 01:45:28 GMT on its exciting mission to study the mysteries of the Solar System's innermost planet.
BepiColombo Blasts Off to Investigate Mercury's Mysteries
At sunset, catch elusive Mercury, bright Venus, the Zodiacal Light, Mars, Saturn, and Jupiter between midnight and dawn.
What's Up - March 2018
Like the waistband of a couch potato in midlife, the orbits of planets in our solar system are expanding. It happens because the Sun’s gravitational grip gradually weakens as our star ages and loses mass.
NASA Team Studies Middle-aged Sun by Tracking Motion of Mercury
The exploration of the solar system is uniquely poised to bring planetary scientists, worldwide, together under the common theme of understanding the origin, evolution and bodies of our solar neighborhood.
International Mission Opportunities and Participation
Astrophysics Division assets have been used in the past to support planetary science research activities and planetary missions.
How Astrophysics Division Assets Are Helping Planetary Science
Dr. Jim Green, director of NASA Planetary Science, speaks to attendees of the 2013 IAA Planetary Defense Conference in April 2013.
Message to Attendees of the 2013 IAA Planetary Defense Conference
Juno, the second mission in NASA's New Frontiers Program, launched flawlessly on Friday, August 5th, on a journey to Jupiter.
Juno to Jupiter: On Its Way!
NASA stands for National Aeronautics and Space Administration.
What Is NASA?
The first mission to orbit the planet Mercury took a big step toward its scheduled March 2004 launch when NASA's MESSENGER project received approval to start building its spacecraft and scientific instruments.
MESSENGER Gets Green Light
Astronomers have known for many years that stars form when the cores of giant clouds of cold molecular material fragment and collapse.
Free-Floating Planets Confirmed
When the three main engines of the Space Shuttle thunder to life during the launch of Discovery, their roar not only marks astronauts once again venturing into space but also trumpets a salute to the man whose vision made such a journey possible.
March 16th Marks 75th Anniversary of First Liquid Fueled Rocket Launch
Astronomers from the Jet Propulsion Laboratory and the U.S. Naval Observatory have solved the ancient mystery of the origin of the Chinese calendar, it was reported to the 182nd meeting of the American Astronomical Society today in Berkeley, Calif.
Astronomers Solve Ancient Mystery of the Chinese Calendar