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Nasa's Mission to Jupiter's Moon Europa Enters Development Phase

Nasa's Mission to Jupiter's Moon Europa Enters Development Phase

By Press Trust of India | Updated: 18 June 2015 18:28 IST

Nasa's mission to search for signs of life on Jupiter's moon Europa has crossed its first major milestone and has now moved to the development phase.

Nasa's mission concept - to conduct a detailed survey of Europa and investigate its habitability has successfully completed its first major review by the US space agency and is now entering the development phase known as formulation.

"Today we're taking an exciting step from concept to mission, in our quest to find signs of life beyond Earth," said John Grunsfeld, associate administrator for Nasa's Science Mission Directorate in Washington.

"Observations of Europa have provided us with tantalizing clues over the last two decades, and the time has come to seek answers to one of humanity's most profound questions," Grunsfeld said.

Nasa's Galileo mission to Jupiter in the late 1990s produced strong evidence that Europa, about the size of Earth's moon, has an ocean beneath its frozen crust.

If proven to exist, this global ocean could hold more than twice as much water as Earth. With abundant salt water, a rocky sea floor, and the energy and chemistry provided by tidal heating, Europa may have the ingredients needed to support simple organisms.

The mission plan calls for a spacecraft to be launched to Jupiter in the 2020s, arriving in the distant planet's orbit after a journey of several years.

The spacecraft would orbit the giant planet about every two weeks, providing many opportunities for close flybys of Europa.

The mission plan includes 45 flybys, during which the spacecraft would image the moon's icy surface at high resolution and investigate its composition and the structure of its interior and icy shell.

Instruments selected for the Europa mission's scientific payload were announced by Nasa in May.

"It's a great day for science," said Joan Salute, Europa program executive at Nasa Headquarters in Washington.

"We are thrilled to pass the first major milestone in the lifecycle of a mission that will ultimately inform us on the habitability of Europa," Salute said.

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