VENUS-MERCURY CONJUNCTION: When the sun goes down tonight, step outside and look west. See Venus? She's about to have company. Mercury is approaching for a 1o conjunction on May 21st and 22nd. The two planets will be so close together, you can hide them behind a fingertip held at arm's length. Visit Spaceweather.com for sky maps and more information.
Aurora alerts: Sign up for Space Weather Alerts and receive a text message when auroras appear in your area.
Above: Venus (above) and Mercury (below) converge over Calgary, Alberta, on May 19th. Photo credit: Harlan Thomas.