The Rosetta comet landing has made history (Space probe, Philae, reaches comet’s surface first time in history)

After 10 years of hard work and one nerve-wracking night, the Rosetta mission has made history by landing on the surface of a comet.

The lander Philae was confirmed to touch down on the surface of the comet more than 300 million miles away at 11:05 a.m. Eastern. Now, scientists expect it to send a panoramic image home and begin analyzing the comet for scientists back on Earth.

Philae is already transmitting scientific data back home, but we're still waiting to see whether the probe is in a stable position. Until we know it's anchored tight, it could roll onto its back and never get back up.

Tensions were high in the European Space Agency's German mission control center, especially as the landing window approached. Because the comet that Philae landed on is so far from Earth, there's a communications delay of 28 minutes. So as the minutes ticked by, the Rosetta team knew that Philae had already either landed or failed — and there was nothing they could do but wait for the data to reach them. Those following the video online were nearly as desperate for news, and Twitter became a sounding chamber of anticipation and excitement.

But a few minutes after 11 a.m., the stern, cautious expressions of the mission control team melted into smiles. And just like that, the world swiveled from anxiety to elation: Philae was on the surface of the comet and ready to do some science.
 [washingtonpost.com]
12/11/14
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For the first time in the history of space exploration a research probe has reached the surface of a comet.
The robotic lander Philae of the European Space Agency separated from the spacecraft Rosetta and landed on the comet 67P/Churyumov-Gerasimenko 500 million kilometers away from the Earth.
Philae separated from the Rosetta spacecraft at 11:35 Moscow time.

 The journey from Rosetta to the comet’s surface lasted about seven hours.

Rosetta and Comet 67P/Churyumov-Gerasimenko, which was discovered in 1969 by Soviet astronomers Klim Churyumov and Svetlana Gerasimenko, now lie about half way between the orbits of Jupiter and Mars, rushing towards the inner Solar System at nearly 55,000 kilometers per hour, the ESA said.
Rosetta will follow the comet for more than a year to provide a detailed scientific study of the Solar System body.
[en.itar-tass.com]
12/11/14