Welcome to the beat. I'm Melissa Murray in for Ari Melbur, and we have got a huge night ahead, and it

starts with what you are seeing on your screen right now, the imminent launch of Artemis II,

the first crude mission around the moon in more than 50 years. Liftoff is expected this hour,

and we will be bringing it to you live. Later in the show,

we're going to talk about another historic first, this time on earth, the president of the

United States attending oral arguments at the Supreme Court today as the court considers

his attempt to end birthright citizenship. Plus, we're just hours away from the president's live address to the nation on the Iran

war.

He will deliver that speech amid flagging poll numbers that reflect his handling of both the war

and the economy.

But tonight, we are going to start with MS Now's Josh Einer,

who is live at Kennedy Space Center in Florida.

Josh, what does it look like there for the launch?

Is it all systems go?

Well, so far, so good, Melissa.

I've actually been listening in this ear to the mission control updates,

and there was just an issue that has come up

involving a battery on the Orion or the Artemis, the whole launcher behind me, in the distance

back there, behind me, the SLS rocket. Right now they're working on troubleshooting that. We have not

yet heard if that's going to impact the actual launch.

The launch window opens at 624 Eastern Time, so a little bit less than 24 minutes from now.

There is a 10-minute hold, meaning they will hold the clock at T-minus 10 minutes to make sure that

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