Comet-chaser to lift-off

The European Space Agency (ESA) has said the twice-delayed launch of its comet-chasing spacecraft Rosetta has been rescheduled.

    Rosetta will rendezvous with the comet in deep space

    There are two possibilities for liftoff, at 0717 GMT on Tuesday or at 0737 GMT, ESA's press office said.

       

    The launch, from ESA's base in Kourou, French Guiana, was initially programmed for last Thursday, but was delayed by high-altitude winds.

      

    A second attempt, on Friday, was postponed after a piece of foam insulation broke away from the fuel tank of the Ariane 5 launcher.

      

    Launch operators Arianespace said the foam problem had been fixed and an "overall inspection" of the tank's insulating tiles had been carried out.

     

    Enigmatic phenomena

      

    Rosetta is designed to rendezvous with a comet in deep space and escort it on its path around the Sun in an attempt to uncover the secrets of one of the most enigmatic phenomena in the Solar System.

      

    Its five-billion-km trek will require four planetary flybys of Earth and Mars to build up

    sufficient speed to meet comet Churyumov-Gerasimenko 675 million kilometres from the Sun, 10 years from now.

      

    Laden with remote sensors to map the comet's surface, Rosetta will then follow the comet as it orbits around the Sun and then drop a small miniature laboratory onto its surface to carry out chemical and geological analysis.

      

    Astrophysicists believe comets are primitive material left over from the formation of the planets and may contain complex, volatile molecules.

      

    These could have "seeded" the infant Earth with the building blocks for DNA, according to one theory.

    SOURCE: AFP


    YOU MIGHT ALSO LIKE

    Survivor stories from Super Typhoon Haiyan

    Survivor stories from Super Typhoon Haiyan

    The Philippines’ Typhoon Haiyan was the strongest storm ever to make landfall. Five years on, we revisit this story.

    How Moscow lost Riyadh in 1938

    How Moscow lost Riyadh in 1938

    Russian-Saudi relations could be very different today, if Stalin hadn't killed the Soviet ambassador to Saudi Arabia.

    We Are Still Here: A Story from Native Alaska

    We Are Still Here: A Story from Native Alaska

    From Qatar to Alaska, a personal journey exploring what it means to belong when your culture is endangered.