Scientists have landed a probe on a comet's surface for the first time in history.
After a daring seven-hour descent, and despite problems with its thrusters, the Rosetta craft's probe, Philae, touched down on 67P/Churyumov-Gerasimenko.
However, controllers admit the probe is still facing major problems as it emerged the harpoons supposed to tether it to the surface had not fired, leaving it attached only by screws on its legs.
Magnificent achievement. To read more, click here.