[gene-h]

And it might still work. One of the neat things about Philae is that it's rated to withstand temperatures down to −60 °C. Most other space probes(and electronics in general) are not rated for such low temperatures and will experience solder joint failures if such temperatures are reached. Most space probes stay above their failure temperature with heaters, if said heaters fail, the space probe dies and won't function even if it warms back up. This happened to the Mars Exploration Rover Spirit.

We don't know just how low Philae can go, however, there is a good chance it's electronics won't break below the rated temperature.

[widforss]

Worth mentioning is that objects keep their thermal energy for much longer in a vacuum since there is nothing that can conduct the heat away, so the heaters does not have to output that much energy.