How brightly the moon glows is a mystery, but maybe not for long
A telescope soaring on an airplane above the clouds has begun measuring moonlight The lunar dark side may be the moon’s more mysterious face, but there’s something pretty basic scientists still don’t know about the bright side — namely, just how bright it is.
Current estimates of the moon’s brightness at any given time and vantage point are saddled with at least 5 percent uncertainty. That’s because those estimates are based on measurements from ground-based telescopes that gaze at the moon through the haze of Earth’s atmosphere.
NASA’s Parker probe reveals the sun’s rogue plasma waves and magnetic islands
Launched in 2018, the spacecraft has flown closer to our star than any other mission