Last touchdown for Discovery

Last touchdown for Discovery

Discovery ended its career as the world's most flown spaceship today, returning from orbit for the last time and taking off in a new direction as a museum piece.

After a flawless trip to the International Space Station, Nasa's oldest shuttle swooped through a few wispy clouds on its way to its final touchdown.

"To the ship that has led the way time and time again, we say: 'Farewell Discovery'," declared Mission Control commentator Josh Byerly.

Florida's spaceport was packed with shuttle programme workers, journalists and even some schoolchildren eager to see history in the making.

The six astronauts on board went through their landing checklists with the bittersweet realisation that no-one would ever ride Discovery again.

They said during their 13-day space station delivery mission that they expected that to hit them hard when the shuttle came to a stop on the runway.

At three minutes before noon Eastern Time, Discovery landed and ceased being a reusable rocketship.

"For the final time: wheels stop," Discovery's commander Steven Lindsey called out when the shuttle rolled to a stop. He was the last member of the crew to climb out of the craft.

Even after shuttles Endeavour and Atlantis make their final voyages in the coming months, Discovery will still hold the all-time record with 39 missions, 148 million miles (238 million kilometres), 5,830 orbits of Earth, and 365 days spent in space. All that was achieved in under 27 years.

Discovery now leads the way to retirement as Nasa winds down the 30-year shuttle programme in favour of interplanetary travel.

Nasa estimates it will take several months of work - removing the three main engines and draining all hazardous fuels - before Discovery is ready to head to the Smithsonian Institution. It will make the 750-mile (1,200km) journey strapped to the top of a jumbo jet.

Throughout the flight, Lindsey and his crew marvelled at how well Discovery was performing. They noted that the spacecraft was going into retirement still "at the top of her game".

"A dream machine," observed Lindsey's co-pilot, Eric Boe, on the eve of landing.

Discovery's last mission unfolded smoothly despite a four-month grounding for fuel tank repairs and a lift-off in the last two seconds of the countdown.

Perhaps more than any other shuttle, Discovery consistently delivered.

It made its debut in 1984 following shuttles Columbia and Challenger, dispatched the Hubble Space Telescope in 1990, flew the first shuttle rendezvous to Russia's Mir space station and carried the first female shuttle pilot in 1995, and gave another ride into space to John Glenn, the first American to orbit the Earth, in 1998.

It got Nasa flying again, in 1988 and 2005, following the Challenger and Columbia disasters. And it flew 13 times to the space station, more than any other craft. On its last trip, it delivered a new storage compartment packed with supplies and a humanoid robot.

"You're sad to see her be retired, but at the same time, it's really a pride thing. We got her back OK. It was a beautiful mission," said Ken Smith, a Boeing propulsion manager who monitored the shuttle's systems from the landing strip.

But he added: "We've got two more to fly."

Nasa's boss, Charles Bolden, a former shuttle commander, led the welcoming party. He will announce the final homes for Endeavour and Atlantis on April 12 - 30 years to the day that Columbia soared on the first shuttle flight.

Nasa planned to move Endeavour out to the launchpad tonight for its April 19 lift-off, but delayed the move until tomorrow because bad weather was expected.

The mission will be commanded by the husband of wounded Congresswoman Gabrielle Giffords, Mark Kelly. His identical twin brother Scott is currently the skipper of the space station; he returns to Earth next week on a Russian Soyuz spacecraft.

Atlantis is scheduled to make its last trip at the end of June.

Nasa is under presidential direction to spread its wings beyond low-Earth orbit. The goal is to send astronauts to an asteroid and then Mars in the decades ahead. There is not enough money for Nasa to achieve that and maintain the shuttle programme at the same time. As a result, the shuttles will stop flying this summer after 30 years.

American astronauts will keep hitching rides to the space station on Russian capsules, until private companies are able to provide taxi service to and from orbit. Nasa expects to get another nine years out of the space station.

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