The MRO Interferometer (MROI) is an optical interferometer
under construction at Magdalena Ridge Observatory (MRO
in New Mexico.
It will incorporate ten 1.4-meter telescopes, movable to any
of 27 stations positioned in a Y shape, allowing baselines up
to 340 meters.
Light will be piped to a Beam Combining Area
(BCA) where the interference will be carried out. The goal
is opticalaperture synthesis. The BCA and the
mechanism to transfer the light to it were worked out, then the
first telescope was installed in 2018, and installation of a
second telescope began in 2023 with a third planned for 2028.
Production of fringes (the results combined beams) was announced
in 2025, and further successful testing announced in 2026.