National Aeronautics and Space Administration Logo
Follow this link to skip to the main content
YSS Logo
YSS Logo
YSS Logo
NASA Banner
Return to Solar System Exploration
  Overview News Classrooms Organizations & Clubs
   Educational Resources   Background   Featured Missions   Solar System Explorers 

Gravity: It's What Keeps Us Together
Educational Resources

Link Description
Gravity Probe B and Space Time Artist concept of Gravity Probe B orbiting the Earth to measure space-time, a four-dimensional description of the universe including height, width, length, and time.

Link Description
Apollo 15 Hammer / Feather Gravity Demonstration Apollo 15 astronaut Dave Scott drops a hammer and a feather on the moon to demonstrate gravity.
Robot Astronomy Talk Show: Gravity and the Great Attractor A robot crew takes a look at the Great Attractor, a massive hidden object that is pulling in every nearby galaxy in the local Universe; this does include useful background on gravity.
Testing Einstein's Universe Written, Directed & Produced by Norbert Bartel, Ph.D., Professor of Astrophysics & Space Sciences, York University, Canada, September 2003
LIGO USA Rap This music video pays tribute to two dozen undergraduates' summer with LIGO (Laser Interferometer Gravitational-Wave Observatory); it features the undergraduates in a rap song about the science they studied.

Link Description
GRACE Global Gravity Animation This visualization of a gravity model (a rotating Earth) was created with data from NASA's Gravity Recovery and Climate Experiment (GRACE) and shows variations in Earth's gravity field.

Link Description
365 Days of Astronomy Why do the planets stay in orbit? And why doesn't the Moon fall out of the sky? Gravity!

Link Description
Gravitation 3.8 An interactive gravity modeler that can simulate a solar system, and allows you to drag the planets into new parameters; this can be used to observe gravitational interaction.
Planet Impact! Put gravity to work as you use Jupiter for target practice.
Gravity Assist Simulator Spacecraft often use the gravity of planets to change their speed and direction. Use this Gravity Assist Simulator to explore how these maneuvers can be used to speed up, slow down, and change the trajectory of a spacecraft.
Planet Mass Comparison The objects in our solar system have an enormous range of sizes and masses. This animation is intended to help you compare the masses of the individual planets, our Moon, and the Sun.

Link Description
Solar System Ambassadors The Solar System Ambassadors is a nation-wide network of volunteers who are trained to communicate the excitement of NASA's space exploration missions and recent discoveries to people in their local communities.
Museum Alliance The Museum Alliance is a network of museums, science centers, planetariums, observatories, parks, NASA visitor centers, nature centers, zoos, and aquariums that bring current NASA science and technology to their visitors through professional development of their staff and access to NASA staff, content and materials.
Night Sky Network This site can connect you to amateur astronomy clubs, events, a night sky planner, and more.

All Topics
Back to YSS Home
Featured YSS Resource: Solar System Lithograph Set Featured YSS Resource: From the Earth to the Solar System Featured YSS Resource: Space 365 app � see what NASA events happened each day of the year.
Awards and Recognition   Solar System Exploration Roadmap   Contact Us   Site Map   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
Producer: Greg Baerg
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
> Privacy Policy & Important Notices
> Inspector General Hotline
> Office of the Inspector General
> NASA Communications Policy
> NASA Advisory Council
> Open Government at NASA
Last Updated: 12 Sep 2014