Earlier this year I participated in a NASA Tweetup during the launch of the twin GRAIL probes on their way to the moon.
I blogged about the event here, here, here and here...
Now, after more than three months in flight, the space crafts are getting to their destination. GRAIL-A will be reaching the moon's orbit tomorrow (December 31st) and GRAIL-B will get there on January 1st. What a way to ring in the New Year for the GRAIL team.
Read more about the mission at the NASA site.