Twin Probes Crash Into Moon Today: How to Watch Live

Two NASA moon probes are slated to slam into the rim of a lunar crater today (Dec. 17), and the space agency will give viewers a behind-the-scenes look at the dramatic action.

The twin Grail spacecraft, known as Ebb and Flow, will crash intentionally near the moon's north pole at 5:28 p.m. EST today, bringing their gravity-mapping mission to a spectacular close. The event will be broadcast on NASA TV and streamed live on the agency's website, beginning at 5 p.m. EST.

The coverage should last about 35 minutes and will include interviews with Grail team members. The impact site will be in shadow at the time of the crash, so no video of Ebb and Flow's violent demise is expected, NASA offi…
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