The planet Mercury will pass close to the bright star Spica in Virgo. This is a particularly good apparition of Mercury for observers in the Southern Hemisphere, less so for northerners.

World Rivers Day is a global celebration of the world’s waterways. WRD highlights the importance and value of rivers and strives to encourage increased stewardship of the world’s rivers. Go out there and adopt a river 🙂

The shadows of Europa and Callisto cross the face of Jupiter simultaneously, best seen from India and central Asia.