1.   If the Odyssey spacecraft arrives safely in Mars orbit, its three primary scientific instruments are to begin operating in January.

2.   Looking ahead, scientists were wondering what the weather would be like on Mars when the spacecraft arrives.

3.   Q. When will the Galileo spacecraft arrive at Jupiter?

4.   The Russians are scheduled to be replaced by a new crew in early February when a Soyuz spacecraft arrives carrying two Russian astronauts and one German astronaut.

5.   Two other NASA spacecraft will arrive at Mars later this year.