During his 32nd solar eclipse observation, the Harvard-trained astronomer is to study the elusive coronal ring, the outer atmosphere of the sun, which can only be seen when the moon blots out the solar disk.

CNN: Africa awaits total eclipse of the sun

Besides being a useful source of dark matter, it may explain the solar-neutrino deficit (the gap between prediction and observation would be caused by a different mutation, from electron neutrinos into undetectable tau neutrinos).

ECONOMIST: Neutrinos

They proclaimed the observation as the first visual - albeit indirect - proof of a planet outside our Solar System.

BBC: We saw it too, say astronomers