Featuring two ionospheric radars (completed 1963, 1978) and a radar/radio telescope (completed 1964). The latter mapped the lunar surface for the 1969 Apollo landing and tracked orbital debris for NASA's manned spaceflights in the 1990s. A nearby radar, commissioned as an early warning prototype system for incoming ballistic missiles, detected and non-cooperatively tracked Sputnik I in 1957.

Details:

Hand-drawn illustration of a beloved, niche, local landmark. This note card is sold only at Muffins on Main in Westford, MA.

Printed on bright white, 230 gsm, archival quality, smooth matte note card.

Packaged with coordinating bright white envelope in a clear protective sleeve.

Folded note card measures 6.25 x 4.5 inches and is blank inside - perfect for letter writing.