NOvA
From The News Recorder, June 6, 2018: Scientists on Fermilab’s NOvA experiment — the world’s largest-baseline neutrino experiment — have detected strong evidence of muon antineutrinos oscillating into electron antineutrinos. Such phenomenon has never been observed before.
From Physics World, June 7, 2018: The best evidence yet that muon antineutrinos can change into electron antineutrinos has been found by the NOvA experiment.
From New Scientist, June 12, 2018: NOvA has confirmed that antineutrinos oscillate, detecting muon antineutrinos morphing into electron antineutrinos with more certainty than we’ve ever had before.