Ries Crater Museum opened in 1990 is the most popular one in Nördlingen. People come from all over the world to see the Ries Valley which was formed by a falling meteorite around 15 million years ago, and also to see a sample of moon rock. This sample is the main exhibit in the museum kept in a special capsule. It was brought from the Moon by NASA astronauts of Appolo-16 who presented it to the museum for the possibility to have trainings at the bottom of the Ries crater.
In the Ries Crater Museum you can learn about Steinheim crater too. It is also formed as a result of a meteorite fall and is actively studied. Among special exhibits there are fragments of the Ries meteorite found in the 20th century. A lot of documents and photos help understand how and when studying craters began.