Space rocks can be found with the telescope or by simply walking around and looking for them. Sims who are serious about finding space rocks are better off not using the telescope. There are three different sizes of space rocks: tiny, large, and gigantic. The Amateur Rock Finder challenge is completed after a Sim finds sixteen different types of meteorite and the Awesomest Rock Collector in the Universe challenge is completed after a Sim finds every kind of rock in the Sims 3. There are 32 different space rocks a Sim can find. These include acapulcoite, winonaite, angrite, ureilite, ataxite, unusual sporecite, aubrite, shergottite, unusual bellacite, rumuritie, branchinite, rodiekceous, carbonaceous chrondrite, pearsonite, chassignite, pallasite, unusual custerous gossticite, ordinary chondrite, diogenite, oetahedrite, unusual dukedite, nakalite, enstratite chondrite, mesosiderite, eucrite, unusual mazzadrayte, hexahedrite, lunar, unusual holmberic, londranite, howardite, unusual llamatite, and kamasite.