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Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

This observatory is famous for discovering the dwarf planet Pluto and features many educational activities, historic telescopes and events for visitors.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

This observatory is famous for discovering the dwarf planet Pluto and features many educational activities, historic telescopes and events for visitors.

This observatory is famous for discovering the dwarf planet Pluto and features many educational activities, historic telescopes and events for visitors.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

This observatory is famous for discovering the dwarf planet Pluto and features many educational activities, historic telescopes and events for visitors.

This observatory is famous for discovering the dwarf planet Pluto and features many educational activities, historic telescopes and events for visitors.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

This observatory is famous for discovering the dwarf planet Pluto and features many educational activities, historic telescopes and events for visitors.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

This observatory is famous for discovering the dwarf planet Pluto and features many educational activities, historic telescopes and events for visitors.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

This observatory is famous for discovering the dwarf planet Pluto and features many educational activities, historic telescopes and events for visitors.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

Study a massive impact crater, created by a meteorite in the northern Arizona desert that hit earth about 50,000 years ago.

This observatory is famous for discovering the dwarf planet Pluto and features many educational activities, historic telescopes and events for visitors.

This observatory is famous for discovering the dwarf planet Pluto and features many educational activities, historic telescopes and events for visitors.