After a heart stopping seven-hour descent, the ESA Philae space-craft has indeed made history by being the first spacecraft ever to land softly on a comet.
Philae's mother-ship - the Rosetta orbiter, transmitted the signal confirming the successful touchdown.
Rosetta was launched on 2 March 2004 and traveled over 4 billion miles through the Solar System before arriving at the comet on 6 August 2014.
The landing site, named Agilkia and is located on the head of the bizarre double-lobed object. Soon after Rosetta arrived, it began taking photos from apx, 20 miles to as far away as 60 miles looking for a possible landing site.
- Those first images soon revealed the comet
as a world littered with boulders, towering cliffs and daunting
precipices and pits, with jets of gas and dust streaming from the
surface.
Philae was release at a distance of 15 miles and it made its decent, without propulsion or guidance.
Over the next 2.5 days, the lander will conduct its primary science mission, assuming that its main battery remains in good health. An extended science phase using the rechargeable secondary battery may be possible, assuming Sun illumination conditions allow and dust settling on the solar panels does not prevent it. This extended phase could last until March 2015, after which conditions inside the lander are expected to be too hot for it to continue operating.