NASA is planning a new mission to Mars this week in the search for ancient microbial life.
The mission, "Perseverance", will launch from the Kennedy Space Centre in Florida on Thursday - and you'll be able to watch live.
Million across the world tuned in to watch the recent SpaceX missions, and viewing figures for this mission to the "red planet" are set to be just as high.
The much anticipated event will take place Thursday, July 30, at 12.50pm BST.
You'll be able to watch a livestream on the NASA Youtube channel here.
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Launching from onboard a United Launch Alliance Atlas V rocket, the rover will complete a 34-million mile journey to the red planet before landing in the Jezero Crater on February 18, 2021.
The 28-mile wide crater contains sediments of an ancient river delta, a location where evidence of past life could be preserved if it ever existed on the planet.
NASA's Mars 2020 project was first announced in December 2012, but launch opportunities have been limited.
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NASA explained: “Owing to the relative positions of Earth and Mars to each other, launch opportunities come up only every 26 months.
“If Perseverance didn't head to Mars this summer, the project would have to wait until September 2022 to try again, seriously impacting the long-term objectives of NASA's Mars Exploration Program and increasing overall mission risk.”
