Comet probe Philae has started drilling into the surface of the comet which it landed on this Wednesday.
But there may not be enough power left in the craft's depleting batteries to obtain scientific data from the samples it collects.
Philae is believed to be tilted to one side in the shadow of a crater wall and is not getting enough light to recharge its batteries using electricity generated by its solar panels.
With less than 24 hours before the craft's primary battery power runs out, scientists are actively considering taking a last-ditch gamble and "hopping" the lander to a sunnier spot. Read: Scientists debating whether to 'hop' Philae to new spot
Thsee incredible images show the moment the probe dropped from its satellite and first landed on Comet 67P five days ago.
Scientists racing against time to keep the Philae comet lander operating are debating whether to try 'hopping' the probe to a new location.
After the first man-made craft landed on a moving comet we look at the pictures sent back from the daring descent to the historic landing.