Skip to main content

NASA’s Lucy mission will soon be heading out to investigate Trojan asteroids

A NASA mission will soon be blasting off to investigate the Trojans, a lesser-studied group of asteroids in the outer solar system. The Lucy mission, named after the famed Australopithecus fossil which was key to understanding early human evolution, will be launching later this month and could help teach us about how the solar system formed.

The (ULA) Centaur stage for NASA’s Lucy mission is lifted by crane into the Vertical Integration Facility.
The United Launch Alliance (ULA) Centaur stage for NASA’s Lucy mission is lifted by crane into the Vertical Integration Facility near Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on Thursday, Sept. 16, 2021. NASA/Kim Shiflett

The spacecraft has been brought to Florida, ready for its launch from Space Launch Complex 41 at Cape Canaveral Space Force Station on Saturday, October 16. Lucy will be launched on a United Launch Alliance Atlas V 401 rocket from Pad 41, from where it will head through Earth’s atmosphere, out of Earth’s orbit, and through the solar system to the Trojan asteroids.

The Trojans are located in the orbit of Jupiter, in two groups — one ahead of the planet and one behind it. Astronomers think these asteroids are leftovers of some of the material which formed the planets in the earliest days of the solar system, so studying them can help us understand how planets are formed.

“With Lucy, we’re going to eight never-before-seen asteroids in 12 years with a single spacecraft,” said Tom Statler, Lucy project scientist at NASA Headquarters. “This is a fantastic opportunity for discovery as we probe into our solar system’s distant past.”

An artist's concept of the Lucy Mission.
An artist’s concept of the Lucy Mission. SwRI

“There has been a lot of hands-on work,” said Donya Douglas-Bradshaw, Lucy project manager at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “This summer has gone by so fast; it’s hard to believe we’re nearly at launch.”

With the spacecraft preparing for launch, its fuel tanks have been filled with a mix of liquid hydrazine and liquid oxygen which will allow it to maneuver between asteroids. It also has its solar panels to recharge its science instruments from the sun.

“Launching a spacecraft is almost like sending a child off to college – you’ve done what can for them to get them ready for that next big step on their own,” said Hal Levison, the principal investigator of the Lucy mission, based at the Southwest Research Institute in Boulder, Colorado.

Editors' Recommendations

Georgina Torbet
Georgina is the Digital Trends space writer, covering human space exploration, planetary science, and cosmology. She…
NASA gives green light to mission to send car-sized drone to Saturn moon
An artist's impression of NASA's Dragonfly drone.

NASA’s Mars helicopter mission is now well and truly over, but following in its footsteps is an even more complex flying machine that's heading for Saturn’s largest moon.

The space agency on Tuesday gave the green light to the Dragonfly drone mission to Titan. The announcement means the design of the eight-rotor aircraft can now move toward completion, followed by construction and a testing regime to confirm the operability of the machine and its science instruments.

Read more
NASA needs a new approach for its challenging Mars Sample Return mission
An illustration of NASA's Sample Return Lander shows it tossing a rocket in the air like a toy from the surface of Mars.

NASA has shared an update on its beleaguered Mars Sample Return mission, admitting that its previous plan was too ambitious and announcing that it will now be looking for new ideas to make the mission happen. The idea is to send a mission to collect samples from the surface of Mars and return them to Earth for study. It's been a long-term goal of planetary science researchers, but one that is proving costly and difficult to put into practice.

The Perseverance rover has already collected and sealed a number of samples of Mars rock as it journeys around the Jezero Crater, and has left these samples in a sample cache ready to be collected.  However, getting them back to Earth in the previous plan required sending a vehicle to Mars, getting it to land on the surface, sending out another rover to collect the samples and bring them back, launching a rocket from the planet's surface (something which has never been done before), and then having this rocket rendezvous with another spacecraft to carry them back to Earth. That level of complexity was just too much to be feasible within a reasonable budget, NASA Administrator Bill Nelson announced this week.

Read more
Junk from the ISS fell on a house in the U.S., NASA confirms
The International Space Station.

A regular stanchion (left) and the one recovered from the NASA flight support equipment used to mount International Space Station batteries on a cargo pallet. The recovered stanchion survived reentry through Earth’s atmosphere on March 8, 2024, and impacted a home in Florida. NASA

When Alejandro Otero’s son called him on March 8 to say that something had crashed through the roof of their home, he initially thought it might have been a meteorite.

Read more