When does it start?

CNN, which is hosting the debate, will begin its coverage at 8:30 p.m. ET, and the debate itself will start at 9 p.m. ET. It’s scheduled to run two hours. If you don’t have cable television, CNN will live stream the debate on its website and mobile platforms. And if all that just seems too conventional, CNN and NextVR are allowing viewers to watch the debate in virtual reality.

Where will it be held?

The Wynn casino in Las Vegas. Not surprisingly, a debate in Vegas is bringing in a big-name entertainer: Sheryl Crow will kick things off by singing the National Anthem.

Who will be in the debate?

Unlike the two prime-time Republican presidential debates, it’ll be much less crowded at the Wynn on Tuesday night, given the comparatively smaller Democratic field. Former secretary of State Hillary Clinton, Vermont Sen. Bernie Sanders, former Maryland governor Martin O’Malley, former Virginia senator Jim Webb and former Rhode Island governor Lincoln Chafee are scheduled to be on the stage.

What about Biden?

The big question in the Democratic race right now is, will Vice President Biden thrown his hat into the ring? As of now, he’s still considering, but CNN has made clear that should Biden enter the race at the last minute, he’d have a spot at the debate. However, the network has also reported that it’s expected Biden will skip the Tuesday forum.

Who will moderate?

CNN’s Anderson Cooper will be the moderator with Dana Bash and Juan Carlos Lopez joining in the questioning. Also, the network is allowing for questions from viewers to be submitted through Facebook or Instagram. Don Lemon will be posing those.

What’s next on the debate schedule?

The Republicans will meet again on Oct. 28 in Boulder, Colo., for their third debate, which will be televised on CNBC. The Democratic field gathers next on Nov. 14 in Des Moines for a debate sponsored by CBS News, The Des Moines Register and KCCI-TV.