Rosetta lost contact with Philae

        The sounding line Rosetta of the European Spacial Agency stills without contact with Philae.

        This Thursday, after a few hours, the receptor, which made history months ago landing in a comet and was expected to contact with the unit, was turned on.

        According to the ESA, the operation was performed at 1.00 a.m. and it hasn't received any signal of the unit Philae yet. This unit entered in a state of hibernation, just after setting in the comet 67/P, due to a shortage of energy.

        The line won't be opened until the next friday, but a good communication is not expected. It is more probably to receive a signal from Philae on June or July.

        The comet is now only at 300 millions of kilometres from the Sun, so it's worth to try to contact it. Whenever the comet gets closer to Sun, its temparature will increase. Until Philae does not reach -45ºC, it will be impossible to wake up the unit.

        If it achieves this temperature, Philae will be able to charge its batteries and to turn on the receptors every 30 minutes waiting for a signal from Rosetta. The information that they are going to collect from Philae will treat mostly about unit's state.

        They will have difficulties to succeed, but we will see what happens at the end...