Good evening from Hawthorne, California and welcome to the live webcast of today's Falcon nine mission to the International Space Station carrying the dragon space.

I'm Tom for Dario.

I'm a firmer engineer here at Space six and today's mission to resupply the space station represents space Sixes eighth Cargo mission to the International Space station underneath the Commercial Resupply Service's program, or C arrest Short.

Now we fly CRS missions under contract with NASA in order to make sure the International space station has all the supplies and quick necessary in order to accomplish its scientific goals.

Onboard today's mission are £4900 of cargo, including crew supplies.

Supercool research that we'll talk about it more later in the programme.

In addition, will also be attempting to land our first stage of the Falcon nine back on land, and this is the first time will be attempting a land landing since a successful landing during the Orbcomm mission in December of last year.

So we're pretty excited we have a lot of great stuff coming up tonight.

Let's do this.

Hi, My name is Lauren Lines, and I'm a mission integration engineer.

Headspace sex.

Now, to my right, you can see the Falcon nine standing on the pad with Dragon at the very top.

Now, this is the seventh Watch that we have this year.

And then the six previous missions, five of them have been faring missions, which meant there been a satellite at the very top with a fairing on top.

Which is why this looks a little bit different overall, The entire stack of this family is about five meters shorter.

And of course you have dragon on top.

So the conical portion here, that is the dragon capsule.

It is the pressurized part of driving where we load the most sensitive cargo cargo that needs steady monitoring of the environmental control systems such as humidity, temperature and pressure.

Right underneath it.

We have the dragon shrunk, which is where we store our unpressurized cargo.

The less sensitive stuff.

It also is what envelopes the solar panels which then deploy on orbit now below dragon.

Everything is the Falcon nine and it's the standard rocket everything that used every same rocket that you see for our fairing missions.

You have the second stage, which is right underneath Dragon, and this operates in the vacuum of space propelling dragon ups of the international space station with a single Merlin engine at the very bottom Underneath, the second stage is the first stage.

It's our booster, and that's the part of the vehicle which at 10 at T zero, the nine Merlin engines on the very bottom ignite and lift the whole assembly up before it separates from the second state, then flying back down to land.

And as we mentioned earlier, we're gonna tell you more about that.

As it's happening, today's launch window is instantaneous.

Now what that means instead of you know, these past missions, we've been seeing the sparing missions where we have maybe about two hours where we can launch anywhere in between those two hours.

Today we have an instantaneous window, which means we need to launch at 12:45 a.m. Local time.

The reason for this is the International Space Station is a moving target flying over the earth, and we need to inject dragon right underneath it reason we want to do it right then it's because that minimizes the amount of extra burns that the spacecraft needs to do and makes the mission overall more efficient.

Now, below here, you're going to see our mission timeline, and we're all of the major events that are going on.

This mission will be tracked and we'll talk it through.

And as they come up happy Sunday night from the headquarters here in Hawthorne, California, Brian here again happening.

Be back on the factory floor.

Today's cargo dragon mission will be bringing out eight Hun of cool payloads to those astronauts that are orbiting in space on board the international space station.

Now we'll be bringing up all the usual things that cargo dragon missions do to them food, spacesuit, et cetera.

But we're also gonna be bringing up some cool mechanisms and science payloads.

One of the most primary.

These is I.

D.

A.

Or the international docking adapter.

Remember, the space station is an international effort, so you have visiting spacecraft coming from all different countries with all different designs.

Idea provides a common interface of that.

They can all Nate safely and similarly in a consistent manner guarding the science payloads there are many.

A few of these include a bio molecular sequence here.

Now we do DNA sequencing on the ground to identify different organisms with a small microbes are much larger organisms.

Now we've done DNA sequencing on Earth, but never out in space before.

This will help us in the quest to you identify plants on other planets.

Medicine, food, maybe even extraterrestrial life forms as well.

Regarding science payloads on board today's Cirrus nine Mission.

Next to regard Health First is osteo comics.

As the roots implies, this is going to be studying bones out in space now in the same vein, no pun intended heart cells will be going up with that one as well.

Out in the microgravity environment, we have to resist even in our Idol state, much less against the force of gravity.

So our bones deteriorate and our muscles atrophy much more quickly.

Study of these mechanisms out in space as they compared to the health research done on Earth, is a very important thing as we attempt to spend longer and longer durations out in space.

Those air.

A few examples of the sailors on board with many more.

Good evening, everybody.

I'm John Federal steal a lead mechanical engineer here at Space Sex.

And as you know, we are launching Dragon for our ninth commercial Resupply Service's mission, the International space station.

Now I have been following today's countdown in the good news right now is all stations air go and the team right here in Hawthorne, as well as our team with the launch of Landing Control Center in Cape Canaveral, are working no issues at the moment.

Right now, we are finishing up loading the propellants on our first and second stage vehicles, and as of this moment, we are completely full of the RP one are refined kerosene on both the first and second stage, and we're about half full, loading the liquid oxygen in our second stage, just topping off a little oxygen loading on our first stage.

Now his entire loading process is loading about £1.1 million repellents on both the first and second stage, and we do that entire effort in just under 30 minutes.

Now, when that vehicle is fully uh filled on the pad, propellants will represent just over 90% of the overall vehicle's mass.

That's taking dragon to orbit today.

And speaking of Dragon, that vehicle weighing over £20,000 to give you a sense of scales for what we're trying to do here, eyes all go as well.

We finished loading the final cargo into that vehicle about a day ago.

Those air the time critical experiments for the National Space station, everything.

They're checked out.

Okay.

And the next major mission, our event coming up for the Dragon team is at T minus eight minute mark about a minute and 1/2 from out, when that vehicles gonna transition to internal power.

The team right now is just monitoring the final few checks as Dragon prepares to go to internal power.

Meanwhile, as you know, we're launching from the Eastern Range with the Air Force the 45th Space Wing supporting us.

They've given us the go for today's launch.

We are also working no constraints for today's launch window.

So to recap, both Falcon nine Dragon, the rage and weather are go for today's it's a tenuous launch window at 9 45 p.

M.

Pacific standard time.

Now the life of every single dragon vehicle that we build is an entire book, but the first chapter is always the same.

It's the manufacturing of the vehicle itself.

It starts off in pieces just like a puzzle, where the individual components are tested to make sure that they work.

And then they're assembled in what we call the integration phase of the entire campaign that occurs in the clean room, that large glass structure that you see just behind me.

Now that integration and testing campaign lasts for a few months.

Once all the subsystems are verified that their behavior is nominal, we ship the vehicle out to the Cape, where it performs final checkouts, concludes its late loading as Lauren and Jeff just mentioned, and then launches that space, which you're about to see for Sierra's nine today.

Now the goal for each of these commercial resupply missions is to deliver cargo to the International space station and then return some pressurized cargo home.

Now Dragon is currently on leave vehicle that is equipped to do this after these few cargo missions under our belt dragon, too, Crew Dragon is next.

Now today's dragon mission is and in cargo to the international space station.

But in the future will be sending crew.

I'm already making steady progress on our ability to upgrade the fount of create the dragon capsule in order to carry astronauts.

Now, aside from things like seats and environmental control systems, safety is really critical to those upgrades.

One of the most significant of those upgrades is the implementation of the launch escape system In the event of emergency.

On the pad or doing launch, the Super Draco engines will power up in Propel Falcon Knight far away Dragon far away from Falcon nine and back down to safety.

Now the Super Draco's aren't just for safety, but they also help us to enable propulsive land findings here on Earth or in future Mars.

Over the past year, we perform multiple successful test of the Dragon propulsion system and their two primary ones, first of which is the hover test for this test.

We suspended Dragon with Heather about 10 feet above the ground and who fired those Super Draco engines in orderto hover the capsule up as the engine was as the engines were firing, the onboard sensors said data into the control system along this super drink, US to adjust their position in orientation across all six degrees of freedom forward and backwards, upwards and downwards and left.

And right now, as you can imagine, stable in precise landing.

It's critical for humans now.

The second major test we performed is the hold down test.

Instead of suspending 10 feet above the ground, we actually held dragging down about two feet above the ground way fired the Super Draco engines in order to characterize the effects of engine blooms on the underside of dragon.

Because the vehicles so close to the ground the underside sees major amounts of heating and forces from acoustic reflections.

And this is what dragons going to see when it's landing.

In fact, this is the actress is the maximum dynamic, dynamic environment that Crew Dragon is going to see across the entire mission.

Now all of this is great gearing up to our 2017 crew Dragon demo flight, or you'll see the capsule in action for the first time, not on a stand, but instead on the very top of Falcon nine.

Both of these tests were successful, and we're continuing to move forward towards development with confidence.

We're just about six minutes inside today's counts and everything still remains.

Go for today's mission of delivering Dragon to the International Space Station for its ninth commercial Resupply Service's mission.

Now the Falcon nine launch vehicle is continuing its propellant load.

We are just finishing up our liquid oxygen load on that second stage, and that's gonna continue to load right up to about the T minus two minute mark where we will finish off that loading for the final few minutes of a sense.

Now something you're going to see on your screen right here is we began the engine till of our launch vehicle at the T minus seven minute mark.

If you've watched our previous Webcasts, you've noticed that we begin the engine chill at the T minus 10 minute mark for previous Falcon Mount launch vehicles.

But experience has shown us that we don't need those extra three minutes.

So we decided to bring this event in engine Till is, the process will begin flowing.

The cold liquid oxygen through our Merlin engines basically chills down all those metallic components and make sure that at the point of ignition, that look at oxygen doesn't flash into gaseous oxygen, potentially damaging those components And that's why we go through that whole exhaustive process of chilling them in.

We've also just started transitioning the vehicle to internal power.

We basically switched the vehicle over to the internal power bus and then at the T minus two minute mark.

We're actually going Thio Stop Trickle, charging the batteries.

And then they will be on its own power at that point in time as well, Dragon being while also traded internal power, which I mentioned that went well, no issues to report to their is, well, coming up on the vehicle.

We have just started pressing the vehicle with our ground side helium.

That process is going well and that gets ready for the final few moments of strong back retract.

You'll see that in a few moments here, in the forward arms of the strong back, that's the left side of the rocket will open up, moving away and then getting ready for the vehicles.

Final few moments there.

If there are any few issues coming up in the last few moments here, we do a backup opportunity on Tuesday at midnight before, right now, Falcon Dragon range, whether everything is go at our launch Atlantic Control Center in Cape Canaveral as well.

It's right here in offering California.

Now, in just a few minutes, the Falcon nine first jade is going to lift off carry the second stage in the dragon capsule.

Once it drops those two off, it's going to separate.

And in the 1st 8 will make its way back down the atmosphere for tonight's landing attempt at landing Zone one or LZ one.

This is our purpose built Rocket Landing had back at the launch site at Cape Canaveral Air Force Base in court.

Now, for those of you who've been watching our past few launches, this is a little bit different.

The past few launches landing on our space ship, which is typically stationed about 100 miles off the coast of Florida.

Going forward, we're going to be making a decision about the land on LZ one or in the autonomous states for judgeship, depending on the type of mission that we're trying to accomplish that day.

So, for instance, for our geo stationary missions, like our last few missions, way to squeeze every last bit of performance out of that falcon.

Nine First Ages can, and this doesn't leave us with a whole lot of propellant margin left over to boost the first age back to the landing site.

So what we do is we take the autonomous space board drone ship and position it out in the ocean so that it can catch the rocket as it controls its way down with, however, today during a Leo mission to the International Space Station, were actually have a fair bit of propellant margin left over.

It means that we can safely booth Falcon nine first age all the way back to Cape Canaveral for a safe controlled landing on LZ one.

Now, for those of you who are familiar, there's three different maneuvers.

There's a boost back burn a reentry burn and then a landing bird will hopefully be able to see on camera.

And our first stage is just about to take off in a few minutes here.

So let's turn it over to the pad cameras and washing rocket take off stage to lock secure flight.

Good night is on internal power in one DTC ground supply full pressure because itself.