WATCH: Coverage of the Blood Moon eclipse

ABC News Digital will be airing a 30-minute special on the Lunar Eclipse happening in many parts of the world this afternoon. The special will begin at 3:30 pm ET / 2:30pm CT on the ABC News Live stream, and will be anchored by ABC News Correspondent Whit Johnson, with reporting from many locations across the globe, including London, Rome, Cairo, Moscow, and Hong Kong.

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WATCH: Coverage of the Blood Moon eclipse

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WATCH: Coverage of the Blood Moon eclipse

Skywatchers looking forward to complete lunar eclipse
DUBAI, United Arab Emirates (AP) – Skywatchers around much of the world are looking forward to a complete lunar eclipse that will be the longest this century.

The so-called “blood moon” Friday, when it turns a deep red, will be visible at different times in Australia, Africa, Asia, Europe and South America when the sun, Earth and moon line up perfectly, casting Earth’s shadow on the moon.

The total eclipse will last 1 hour and 43 minutes, with the entire event lasting closer to four hours.

In a special treat, Mars is in opposition on Friday – meaning the planet and the sun will be on exact opposite sides of the Earth and will shine its best. Mars is also at its closest approach to Earth this week since 2003, making it appear bigger and brighter.