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We now offer the Cool It! card game in our Science Store. Cool It! is the new card game from UCS that teaches kids about the choices we have when it comes to climate change.

Junk in Space

Like the Earth's environment, the space environment is getting more and more cluttered. There are currently MILLIONS of man-made orbital ruins that make up "space junk". Unfortunately, the past 45 years of space exploration have generated a lot of junk!

Space junk can be anything from hatches blown off space modules, paint fragments from the space shuttle, or satellites that no longer work. Man-made debris orbits at a speed of roughly 17,500 miles/hour (28,000 km/h)! Think of the damage even a small speck of paint could do if it hit a spacecraft at such a high speed!

We need your help to capture junk that's floating out there in space. But be careful not to capture working satellites, spacecraft, or astronauts--three strikes and you're out!

Play Junk in Space

More information about space debris

We have a lot of fun making these games, and we hope that you have fun playing them, but we can't know unless you tell us! Please fill out our survey and let us know what you think--perhaps you have suggestions for future games?

Shop Windows to the Universe Science Store!

Learn about Earth and space science, and have fun while doing it! The games section of our online store includes a climate change card game and the Traveling Nitrogen game!

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Cool It! Game

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

Space Junk

Whether on Earth or in Space, human activity creates waste. Like the Earth's environment, the space environment is getting more and more cluttered. There are currently millions of man-made orbital ruins...more

Satellites Collide in Earth Orbit!

In February 2009 two satellites in Earth orbit crashed into each other and were destroyed. This was the first time ever for a major collision between two satellites in Earth orbit. The satellites were...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA