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Lunar eclipse: How to watch the blood moon and Mars this Friday

A NASA image of a “blood moon” blushing red.

NASA

A close approach by Mars will light up the sky all night Friday, July 27, and many parts of the world will also be able to catch a “blood moon” at the same time in a rare astronomical double-billing.

Those outside the viewing zone can catch the event online through the Virtual Telescope Project.

Friday’s red moon comes as part of the longest total lunar eclipse of the century. The sun, Earth and moon will line up and our planet will cast a reddish shadow onto our lunar buddy. That’s how it gets the dramatic-sounding “blood moon” nickname.

Mars will also be part of the show because the Red Planet and sun will be on opposite sides of Earth, a phenomenon know as Mars opposition. Mars will be nearing its closest approach to Earth since 2003, making it look very bright in the sky. Its appearance near the blood moon after sunset will give viewers a double vision in red.

The eclipse will be visible in parts of Australia, Asia, Africa, South America and Europe. Sorry, North America, you’ll need to watch online instead.