On Friday night, the moon will take on a ghoulish shade of red for many parts of the world, during what will be the longest total lunar eclipse of the century.
Also called the blood moon, totality for the lunar eclipse will last for 103 minutes over parts of Australia, Asia, Africa, Europe and South America.
During a lunar eclipse, the stars align so that the earth is sandwiched between the sun and the moon, blocking the sun’s light to the moon. Sunlight passes through the earth’s atmosphere which acts like a lens filter, casting longer, wavelength red light onto the moon.
Unlike solar eclipses, lunar eclipses can be observed without eye protection.
With the exception of North America, many parts of the world will be able to witness the celestial phenomenon.
Timeanddate.com has a handy guide of when and where people can watch the blood moon around the world. All times listed are also local.
Rio de Janeiro: Maximum eclipse, when the moon is at its darkest shade of red, 17:28
London: 21:21
Paris: 22:21
Cairo, Egypt: 22:21
New Delhi, 1:51 am (+1 day, July 28)
Beijing, 4:21 am (+1 day, July 28)
Tokyo: 4:42 am (+1 day, July 28)
Sydney, Australia: 06:21 am (+1 day, July 28)
For North Americans, timeanddate.com will also livestream the event from 18:00 UTC on July 27 at https://www.timeanddate.com/live/.