A NASA spacecraft loaded with diamonds blasted into space on Saturday, on a 12-year mission to explore eight asteroids.
Seven mysterious space objects are among swarms of asteroids orbiting Jupiter, which are believed to be original remnants of the planet's formation.
The Atlas V rocket blasted off before dawn, carrying the Lucy spacecraft on a twisting orbital flight of nearly 6.3 billion kilometres.
The craft is named after the 3.2 million-year-old skeletal remains of a human ancestor found in Ethiopia nearly half a century ago.
The discovery got its name from the 1967 Beatles song "Lucy in the Sky with Diamonds," which prompted NASA to send the spacecraft to fly along with the band members' song. The spacecraft also carried a lab-produced diamond disk for one of its science instruments.
The paleoanthropologist behind the discovery of the "Lucy" fossil, Donald Johansson, said he was astonished by this intersection between our past, present and future.
"It's very exciting that a long-lived human ancestor was the catalyst for a mission that promises to add valuable information about the formation of our solar system," added Johansson, of Arizona State University who traveled to Cape Canaveral for the launch.
Lucy's $981 million mission is the first to target Jupiter's so-called Trojan entourage: thousands - if not millions - of asteroids that share the orbit of the so-called "gas giant" around the sun. Some Trojan asteroids precede Jupiter in their orbit, while others follow it.
Despite their orbits, Trojan asteroids are far from the planet and are mostly scattered away from each other. There is no fundamental chance that Lucy will be hit by an asteroid as it moves past its targets, says Hal Levison, of the Southwest Research Institute and lead scientist on the mission.
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