Slooh will provide a live show (available here) as NASA's MESSENGER crashes into Mercury, ending its mission. The broadcast will begin at noon PDT (3 p.m. EDT, 19:00 UTC) on Thursday, April 30.

Your host, Eric Edelman, and Slooh astronomer Bob Berman will chat with mission experts, including MESSENGER MASCS Instrument scientist Noam Izenberg, while watching live views of Mercury. Viewers can join the discussion with the Twitter hashtag #SloohMESSENGER.

The impact won't be apparent from Earth, but in a press release, Berman said, "simply watching Mercury is always special and exciting, since it's so close to the sun. Even the great Copernicus said he'd never seen it. But watching it close-up while the MESSENGER spacecraft meets its doom will be a poignant experience that I'm glad we're sharing with the public."