Stephan Ulamec, of the German Aerospace Center, announced the news. He said the landing equipment and a special device meant to secure the spacecraft to the comet had deployed.
“Philae is talking to us, first things he told us is that the harpoons have been fired, rewound and that the landing gear has been moved inside, so we are sitting on the surface, Philae is talking to us, more data to come.” Early on Wednesday, ground controllers at the European Space Agency operations center in Germany confirmed that Philae had separated from the Rosetta ship. The probe then began a tense trip toward the comet and landed on its surface hours later. The attempt to land on the comet was considered risky not only because scientists were unsure of the surface, but because of problems with thrusters used to land the probe.