Scheduled to launch on Feb. 27, NASA's PUNCH mission could revolutionize space weather forecasts, unify the solar corona and ...
you might recall the Sun’s corona — its outermost atmosphere — a halo of glowing light visible only when the bright disk is obscured. Black holes, it turns out, have their own version of ...
The corona itself—which appears as a white, wispy halo around the moon during totality—is about the same brightness as the full moon. So get solar eclipse glasses and safely watch the partial ...