Trojan asteroids are remnants from the early life of our solar system, fossils from the formation of planets to be precise
LOS ANGELES (ANTARA) – The US space agency (NASA) on Saturday launched a space probe in its first mission to investigate a Trojan asteroid on the planet Jupiter.
Trojan asteroids are two large clusters of space rock that scientists believe are remnants of ancient material that formed the outer planets of the solar system.
The spacecraft named Lucy, which is equipped with a special cargo capsule, was launched as scheduled from the Cape Canaveral Space Force Station in Florida at 5:34 a.m. local time (4:34 a.m. EST), NASA said.
The spacecraft was carried by an Atlas V rocket made by the United Launch Alliance (UAL), a joint venture between Boeing Co and Lockheed Martin Corp.
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Lucy’s mission is to undertake a 12-year expedition to study asteroids.
The probe will be the first to explore the Trojans, thousands of rocks orbiting the sun in two groups — one in front of Jupiter’s gas giant path and one behind it.
The largest group known as the Trojan asteroids — the name of the warrior in Greek mythology — is believed to be 225 kilometers in diameter.
Scientists hope that Lucy’s close exploration of the seven Trojan asteroids will yield new clues about how the planets in the solar system formed about 4.5 billion years ago and what shaped their current configuration.
Believed to be rich in carbon compounds, the asteroids may provide new insights into the origin of organic matter and life on Earth, NASA said.
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“Trojan asteroids are remnants of early life in our solar system, fossils of planet formation to be exact,” the mission’s principal investigator Harold Levison of the Southwest Research Institute in Boulder, Colorado, was quoted as saying by NASA.
There has not been a single scientific mission in the history of space exploration designed to visit many different objects independently orbiting the sun.
In addition to the Trojan asteroid, Lucy will also approach an asteroid in the solar system’s main asteroid belt called Donald Johanson in honor of the head of the archaeological team that discovered the fossil of a human ancestor known as Lucy, whose name was used on the NASA mission.
The Lucy fossil, discovered in Ethiopia in 1974, became the title of the Beatles hit song, “Lucy in the Sky with Diamonds”.
Lucy’s spacecraft will make spaceflight history in another way. Tracing a route that loops back to Earth three times to gain gravity, Lucy will be the first probe to return to Earth from the outer solar system, according to NASA.
Lucy will use rocket boosters to maneuver through space. The probe has two sets of solar cells, each about the size of a school bus, to recharge the batteries that power the instruments in the center of the fuselage.
Source: Reuters
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Translator: Anton Santoso
Editor: Mulyo Sunyoto
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