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I am off to the Grand Canyon again for a caving expedition. We drive up and hike in today, and hike out and drive home on Monday.
I am not bringing a laptop this time to post on the drives. Posting, except for evening pauses, will thus have to wait until I return.
There is one scheduled launch this weekend, the late lift-off tonight of BebiColumbo, a joint European-Japanese mission to Mercury, by a Ariane 5 rocket. I will catch up on this, and other news, once I return.