The European Space Agency says the Huygens space probe has successfully transmitted scientific data from Saturn's moon Titan.
Officials say the probe, operated jointly by the American, European and Italian space agencies, is continuing to transmit data after landing on the moon's surface earlier Friday.
Huygens is studying the composition of Titan's atmosphere and relaying the information to the probe's parent craft, Cassini, for transmission to Earth.
European space officials say the probe will continue to transmit data over the next few hours. It takes about one hour for the signal to travel from the probe back to Earth.
Scientists believe conditions on Titan are similar to those here on Earth before life evolved, which could help them understand the origin of our atmosphere.