... Coronal Rain on the Sun . ... An example occurred in mid-July 2012 after an eruption on the Sun that produced both a Coronal Mass Ejection and a moderate solar flare. ... Last week, for example, our very Moon passed in front of the planet Jupiter. ... M51: The Whirlpool Galaxy in Dust and Stars . ... At only 30 million light years distant and fully 60 thousand light years across, M51, also known as NGC 5194, is one of the brightest and most picturesque galaxies on the sky. ... Mercury on the Horizon...