Ten years ago, Europe landed on Titan!
Ten years ago, Europe landed on Titan!
January 14, 2015
In January 2005, the Thales Alenia Space-built Huygens space probe landed on Saturns enigmatic moon
Cannes, January 14, 2015 - Ten years ago, day to day, Europe celebrated the success of an exceptional mission, still the only one of its kind: a landing on Titan, Saturns enigmatic moon, at a far greater distance than any atmospheric probe had ever traveled at the time. The European Space Agency (ESA) had originally selected Thales Alenia Space in 1991 to lead a team of companies from throughout Europe. They rose to the challenge. The Huygens probe, attached to an orbiter, had lifted off on October 15, 1997, and landed smoothly on Titan on January 14, 2005, after a voyage lasting seven years, giving the international scientific community a veritable plethora of scientific information.
A bountiful harvest for a high-risk mission
All data gathered by Huygens during its descent and from the surface of Titan were transmitted to the Cassini orbiter. To pick up this invaluable data, the orbiter pointed its
4-meter-diameter high-gain antenna, built by Thales Alenia Space as part of the Italian space agency's mission contribution, towards Titan. When Cassini lost contact as it slipped below the horizon of the landing site, the probe kept transmitting signals, which were picked up by large radio telescopes back on Earth. Subsequently, Cassini once again directed its antenna towards the Earth to relay the recorded data. All in all, Huygens operated for 148 minutes during its descent, and for more than three hours on the ground.
For scientists around the world, these 474 megabits of data, including more than 350 photos, were a veritable manna from heaven , food for study for scientists from around the world, which continue to be analyzed. It turns out that the dynamics of the Titan atmosphere are comparable to those on Venus, Earth or Mars, enabling us to expand our scope of investigations in comparative planetology, as well as our understanding of planetary atmospheres - especially of our own planet.
The surface of Titan revealed a world modeled by cryovolcanic eruptions, along with precipitation of methane and other hydrocarbons. The measurements of atmospheric conductivity carried out by Huygens, and the information transmitted by the Cassini orbiter ultimately revealed a world of liquid methane and ethane lakes and seas, gigantic sand dunes, ice cobbles and rivers, an ocean of ammonia-rich water under a crust of ice, variable altitude clouds, an atmosphere rich in argon and propylene, and much more.
Europe joins the major leagues
Thales Alenia Space and its partners have firmly established Europe as a world-class space power, by achieving the successful first entry into a largely unknown atmosphere, on the furthest celestial body ever reached physically by a man-made object, and largely exceeding the initial mission objectives. Since then, the immense success of the Rosetta/Philae comet mission, for which Thales Alenia Space assembled, integrated and tested the Rosetta probe, showed not only that the European space industry was among the world leaders, but also that the story is far from finished. The upcoming challenges for Thales Alenia Space include the ExoMars Martian exploration mission, with a first leg in early 2016 and a second leg in 2018. Beyond the challenge of a successful landing, this mission is tasked with drilling into the Martian soil and taking samples.
Also on tap for 2016 is the Mercury observation mission, by the Bepi Colombo space probe. Thales Alenia Space is responsible for building the telecommunications, thermal control and electrical power systems for this mission. It will also handle satellite integration and testing, as well as providing technical support during the launch. Furthermore, Thales Alenia Space is developing the X and Ka-band transponders, the onboard computer, mass memory and high-gain antenna, 1.1 meters in diameter. This antenna will handle communications with the Earth, as well as taking part in the radio-occultation experiment, designed to study the planets gravity. It draws on the heritage of the antenna used for the Cassini-Huygens mission.
Thales Alenia Space is also prime contractor for the Euclid cosmology satellite, designed to pierce the secrets of dark matter and energy.
About Thales Alenia Space:
Thales Alenia Space, a joint venture between Thales (67%) and Finmeccanica (33%), is a key European player in space telecommunications, navigation, Earth observation, exploration and orbital infrastructures. Thales Alenia Space and Telespazio form the two parent companies Space Alliance , which offers a complete range of services and solutions. Because of its unrivaled expertise in dual (civil/military) missions, constellations, flexible payloads, altimetry, meteorology and high-resolution optical and radar instruments, Thales Alenia Space is the natural partner to countries that want to expand their space program. The company posted consolidated revenues in excess of 2 billion euros in 2013, and has 7,500 employees in six countries. www.thalesaleniaspace.com
Thales Alenia Space Press Contacts:
Sandrine Bielecki
Tel: +33 (0)4 92 92 70 94
sandrine.bielecki@thalesaleniaspace.com
Chrystelle Dugimont
Tel: +33 (0)4 92 92 74 06
chrystelle.dugimont@thalesaleniaspace.com
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Ten years ago, Europe landed on Titan! 
