Comet-chasing probe sends signal to Earth
by Frank Jordans, Associated Press
January 20, 2014 01:45 PM | 430 views | 0 0 comments | 8 8 recommendations | email to a friend | print
This undated image provided by the European Space Agency ESA shows an artist's impression of the Philae lander. Scientists at the European Space Agency are expecting their comet-chasing probe Rosetta to wake from almost three years of hibernation at 11 a.m. Monday Jan. 20, 2014 (1000 GMT; 5 a.m. EST) and phone home to say all is well. (AP Photo/ESA ATG medialab , Astrium E, Viktor, File)
This undated image provided by the European Space Agency ESA shows an artist's impression of the Philae lander. Scientists at the European Space Agency are expecting their comet-chasing probe Rosetta to wake from almost three years of hibernation at 11 a.m. Monday Jan. 20, 2014 (1000 GMT; 5 a.m. EST) and phone home to say all is well. (AP Photo/ESA ATG medialab , Astrium E, Viktor, File)
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This image provided by the European Space Agency ESA shows an artist’s impression of the Rosetta orbiter deploying the Philae lander to comet 67P/Churyumov–Gerasimenko. The image is not to scale; the Rosetta spacecraft measures 32 m across including the solar arrays, while the comet nucleus is thought to be about 4 km wide. Scientists at the European Space Agency are expecting their comet-chasing probe Rosetta to wake from almost three years of hibernation at 11 a.m. Monday Jan. 20, 2014 (1000 GMT; 5 a.m. EST) and phone home to say all is well. (AP Photo/ESA, C.Carreau, File)
This image provided by the European Space Agency ESA shows an artist’s impression of the Rosetta orbiter deploying the Philae lander to comet 67P/Churyumov–Gerasimenko. The image is not to scale; the Rosetta spacecraft measures 32 m across including the solar arrays, while the comet nucleus is thought to be about 4 km wide. Scientists at the European Space Agency are expecting their comet-chasing probe Rosetta to wake from almost three years of hibernation at 11 a.m. Monday Jan. 20, 2014 (1000 GMT; 5 a.m. EST) and phone home to say all is well. (AP Photo/ESA, C.Carreau, File)
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In this Dec. 10, 2013 file picture a European Space Agency, ESA, employee sits in the control room for the Rosetta mission at the ESA in Darmstadt, Germany. Scientists at the European Space Agency are expecting their comet-chasing probe Rosetta to wake from almost three years of hibernation at 11 a.m. Monday Jan. 20, 2014 (1000 GMT; 5 a.m. EST) and phone home to say all is well. (AP Photo/dpa, Boris Roessler, File)
In this Dec. 10, 2013 file picture a European Space Agency, ESA, employee sits in the control room for the Rosetta mission at the ESA in Darmstadt, Germany. Scientists at the European Space Agency are expecting their comet-chasing probe Rosetta to wake from almost three years of hibernation at 11 a.m. Monday Jan. 20, 2014 (1000 GMT; 5 a.m. EST) and phone home to say all is well. (AP Photo/dpa, Boris Roessler, File)
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BERLIN (AP) — A comet-chasing space probe that has been in hibernation for almost three years has woken up and sent its first signal back to Earth.

The European Space Agency received the all-clear message "Hello World!" from its Rosetta spacecraft some 800 million kilometers (500 million miles) away shortly after 7 p.m. (1800 GMT; 1 p.m. EST).

Rosetta was put into hibernation in 2011 to conserve energy for its long journey to meet with comet 67P/Churyumov-Gerasimenko.

If all goes as planned the probe will rendezvous with the comet in the coming months and drop a lander onto its icy surface in November.



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