The mezzanine overlooking the Richard and Lois Gunther Depths of Space exhibit gallery provides visitors with an experience that bridges the more familiar Earth-bound orientation toward the universe with a more cosmic perspective informed by the most sophisticated astronomical instruments ever built. The zone showcases samples of the universe that come to Earth from space or that we acquire through space exploration
A spark chamber detects energetic particles (mostly muons) that pass through it. When these particles encounter the helium and neon gases inside, they ionize the atoms of gas (by stripping electrons away from their atoms).
Landing on the Moon changed everything. Earth's nearest neighbor in space was transformed from a distant object shining in the night sky to a world with a desolate landscape and its own unique history.