LOS ANGELES (AP) If you thought NASA's latest Mars landing was a nail-biter, get ready for a sequel.

The space agency on Tuesday announced plans to launch another mega-rover to the red planet in 2020 that will be modeled after the wildly popular Curiosity.

To keep costs down, engineers will borrow Curiosity's blueprints, recycle spare parts where possible and use proven technology including the novel landing gear that delivered the car-size rover inside an ancient crater in August.

The announcement comes as NASA reboots its Mars exploration program during tough fiscal times.

"The action right now is on the surface, and that's where we want to be," said NASA sciences chief John Grunsfeld.

Like Curiosity, the mission will be led by the NASA Jet Propulsion Laboratory. But many other details still need to be worked out, including where the rover will land and the types of tools it will carry to the surface.

While the science goals remain fuzzy, Grunsfeld said the rover at the very least should kickstart a campaign to return Martian soil and rocks to Earth a goal trumpeted by many scientists as key to searching for evidence of past life. Curiosity doesn't have that capability.

In the coming months, a team of experts will debate whether the new rover should have the ability to drill into rocks and store pieces for a future pickup either by another spacecraft or humans.

NASA is under orders by the White House to send astronauts to circle Mars in the 2030s followed by a landing.

Despite Curiosity's daring touchdown, its road to the launch pad was bumpy. At $2.5 billion, the project ran over schedule and over budget.

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Mars redux: NASA to launch Curiosity-like rover