A mile below ground, a sign hangs over the door to the LUX dark matter experiment telling visitors how far to Wall Drug—in both dimensions. Matthew R. Francis Update, Sept. 6, 2021: It’s Labor Day Weekend in the US, and
A mile below ground, a sign hangs over the door to the LUX dark matter experiment telling visitors how far to Wall Drug—in both dimensions. Matthew R. Francis Update, Sept. 6, 2021: It’s Labor Day Weekend in the US, and