https://phys.org/news/2018-07-lunar-eclipse-longest-century.html

The total eclipse lasts 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.