The landing is expected at 3:55 p.m. EST (2055 GMT). Related: How to watch NASA's Perseverance rover land on Mars Live updates: NASA's Perseverance Mars rover mission ...

The landing of NASA’s Perseverance on Mars live streamed on the Piccadilly Lights in London. Guy Bell/Shutterstock ...

It's "Mars madness" day for space fans NASA's Perseverance rover mission targets an epic landing today (Feb. 18). A NASA documentary takes a close look at the mission.

The Mars rover game simulates the three stages of Curiosity's landing. Upon entering the atmosphere of Mars, the craft is traveling at about 13,000 mph.