<div><span style="font-size: 1rem;"><b>This is the moment SpaceX broke the news that the launch was halted for the day - minutes ahead of the scheduled launch time.</b></span><br></div><div><br></div><div>The rocket can't just sit on a launch pad for days on end, full of fuel, waiting to lift off.</div><div><br></div><div>The propellants are super-chilled and they constantly need to be replenished during a countdown as some of the liquid warms up and vents to the atmosphere.</div><div><br></div><div>SpaceX must de-tank while they work through their valve issue and decide on a new flight day.</div><div><br></div><div>The rocket doesn't have the equipment on board to main the liquid methane and liquid oxygen in the correct storage state for extended periods.</div><div><br></div><div>This equipment is all off to the side of the launch pad in an area called "the tank farm". - BBC</div><div><br></div><div>bnbd24/fas</div>