The FBI did not tell Sheriff House the reason for the closure. Sheriff Benny House did tell ABC 7 that his local law enforcement did not have anything to do with the observatory closure.I like Instapundit Glenn Reynolds' comment:
For the conspiracy-minded, Sunspot is a mere 130 miles from Roswell, New Mexico, and about 90 miles from the White Sands Missile Range. Established in 1958, the observatory predates the unincorporated area in the Sacramento Mountains that was named for it.
They discovered we’re heading for a Maunder Minimum or worse and don’t want people to know.For those who haven't read closely, a Maunder Minimum is a period of years when the sun goes quiet, throwing few-to-no sunspots, while the earth experiences a mini-Ice Age of rapid cooling and weak, short summers.
An alternative theory: the observatory had been taken over by aliens, masquerading as humans, who wished to closely observe their experimentation on our sun. Somebody check where Mulder and Scully are currently posted (kidding) and where the evacuated staff has been sequestered (not kidding).