NASA is baffled by unexplained discrepancies in the velocities of some of its spacecraft. Dubbed the Pioneer Effect, it has been observed before but has now been discovered in more probes. Many theories have been put forward, many disproved, and some are wondering if our understanding of gravity is correct.
posted on Mar 22, 2008 - View this thread

The Golden Record: Hear what the aliens will hear.
30 years ago today, a collection of images and sound recordings engraved on a record was launched toward the stars. The playlist covers an amazing collection of music, and has been called the Mix Tape of the Gods.
posted on Sep 5, 2007 - View this thread

Move over X-Prize - in order to win the next big space prize($50 million) one will have to build a spacecraft capable of taking a crew of no fewer than five people to an altitude of 400 kilometers and complete two orbits of the Earth at that altitude. Then they have to repeat that accomplishment within 60 days.
posted on Nov 8, 2004 - View this thread

NASA's Official 'Galileo Dies' Page. Galileo is set to crash into Jupiter on Sunday. Responsible for many great images and tons of information, Galileo served well. Find a complete history of the Galileo mission here. Also, don't forget to watch the End of Mission webcast this Sunday at approx. 2 PM EST here.
posted on Sep 16, 2003 - View this thread

Swan song for a great explorer. Tomorow, the Galileo explorer will make a flyby of Jovian moon Amalthea ending pehaps the geatest unmanned mission in NASA history. Galileo telemetry may not survive the flyby having already receieved much more radiation than it was designed for. Even if it does survive, this will be its final orbit scheduled to crash into Jupiter in September of next year. In spite of antenna difficulties, the spacecraft returned many beautiful images of Jupiter's moons, along with coverage of the Shoemaker-Levy collision and the first atmospheric probe to decend into Jupiter's weather.
posted on Nov 3, 2002 - View this thread

Since 1965, the Pioneer 6 space probe has quietly maintained its orbit around the sun between Earth and Venus. This week, in commemoration of the anniversary of its launch, NASA will attempt to re-establish contact with the oldest surviving spacecraft.
posted on Dec 4, 2000 - View this thread