Good afternoon, everyone. Virgin Galactic successfully achieved several important milestones in the third quarter, which, in combination with some important adjustments we are making in our near-term operating model has set the company on course to define and lead the suborbital space travel industry. We're going to cover a lot of ground today, so I'll open the call with four key headlines. First, we have demonstrated that our spaceflight system works on a repeatable basis. As planned, we completed six spaceflights in under six months with our initial spaceship VSS Unity. This is an unprecedented achievement in human space light. Second, the Virgin Galactic customer experience has been overwhelmingly positive and meaningful and the value of our experiential product is exceeding our high expectations. The backlog of demand for experience is robust, and our early customers are Virgin Galactic astronauts. They love it. Third, we expect the advances being built into our Delta class ships will enable each of these new ships to fly up to eight times x per month during steady-state operations. This turn time metric is unrivaled in the industry and will enable breakthrough capacity and revenue generation. And fourth, we forecast our quarter end cash and marketable securities position of approximately $1.1 billion, provides sufficient capital to bring our first two delta ships into service and to enable our crossover to positive cash flow in 2026. We look forward to sharing details behind these headlines on today's call. Turning to our agenda on slide three. I'll start with an overview of the Virgin Galactic astronaut experience and share customer insights from our first six flights. We'll review progress from our Delta spaceship program and talk more specifically about the expected unit economics of our Delta class ships. We'll then discuss adjustments to our near-term operating model, including restructuring actions announced yesterday that will redirect resources towards our Delta program as we focus the entire company on realizing the profit potential from these ships. Finally, we'll share financial results for the quarter and discuss the expected spending profile of our Delta program in greater detail. Following our prepared remarks, we will open the call for your questions. Turning to slide 4. Since our last earnings call, we completed four space missions on the monthly cadence that we had planned. Each mission was an incredible success, and we are now graduating customers from our future astronaut community into the Virgin Galactic Astronaut Community. Our Virgin Galactic astronauts experience their space flight in ways that are unique to their background and motivation for traveling to space. One point of commonality, though, has been that the overall experience is dramatically impacting our customers in an extremely positive way. Moving to slide 5. The quotes on this page are from some of our astronauts following their space flights, and they capture just a sliver of the meaning that our customers have come away with. I'll read just three of them on today's call. The first is a quote from a Galactic 02 astronaut. This has been the best day of my life, the most sensational day of my life, and you can't get any better than that. It exceeded my wild dreams. The second is from a Galactic 04 astronaut, he said, I always knew it was going to be most extraordinary experience of my life. I always knew that. And people kind of told me it was going to be. But then when it is, and it’s on another level to the experience you thought you were going to have, then it’s very difficult to explain. And from our youngest astronaut, who shared, I was shocked at the things that you feel. You are so much more connected to everything than you would expect to be. You felt like a part of the team, a part of the ship, a part of the universe, a part of Earth. It was incredible and I’m still starstruck. Vastly exceeding the expectations of our customers is the best way to convert those customers into ambassadors for our company. Based on initial feedback, we are delivering a truly incomparable experience that our astronauts will carry with them for their lifetimes. We will continue to learn and adjust the overall customer journey, but the early results have been exceeding our very high expectations. Moving to slide 6. Our focus on the astronaut journey and the very way in which we bring people to space is paying off in the overall experience. Our training takes place at Spaceport America, and incomparable facility built by the state of New Mexico and the stunning setting has been a hit with astronauts and their guests alike. The 90-minute space flight experience, including the climb to release attitude while attached to our mothership is proving to be an experiential advantage. The smoothness of it all, combined with the raw power of the rocket motor during the boost phase has been a standout feature for our astronauts. The view of the earth and its natural habitat as space has literally taken breath away and drawn tiers and deep emotions, because of its stunning beauty and brilliance and the fact that we land back on the same runway where we took off, with all the friends and family awaiting has made for a completely magical return experience. Our training program is a huge differentiation point. We took the opportunity on our early flights to have our astronaut instructors observe the customer experience from within the cabin to guide adjustments to our ground-based training process. This process was valuable and has been successfully completed. Starting with Galactic 06, we will open up this instructor seat, and all four Unity seats will have paying customers. Six human space flight in six months with VSS Unity is a tremendous accomplishment that establishes new turn time records for reusable human spaceflight systems. It's important to note that the primary business objectives of Unity’s missions are to demonstrate the efficacy of our spaceflight system, to build learnings that inform our Delta program and to showcase the incredible emotion, impact and value of Virgin Galactic spaceflight experience. We have done that. These flights have built confidence in our spaceflight system, increased credibility as we consistently deliver on plan and clearly demonstrated the powerful customer benefits of the Virgin Galactic spaceflight. The success of these flights has been accomplished through the collaborative effort of our entire company, and I'd like to call out the incredible work from our teammates who have made this possible. Moving to slide 7. Virgin Galactic spaceship and mothership, both have industry-leading reusability metrics, but our airplane based mothership has the additional benefit of fast turnaround times. Our primary goal with the Delta program is to also bring that fast turn time capability to our spaceships to unlock a step function increase in capacity. In this regard, the next page, slide 8, makes it clear why we are so focused on our delta ships. Two metrics that will be of importance to our industry are revenue per flight or RPF and flights per month or FPM, which is referenced on a per ship basis. Taking a look at the table on slide 8. Our four-seat spaceship 2 model, Unity, has a revenue per flight potential of $1.8 million to $2.4 million at our current prices, depending upon if it is flying private astronauts, research customers or a mix. Unity has an average flight per month of around one and the product of those two metrics leads to modest revenues. As I mentioned earlier, Unity's flight objectives are to demonstrate our system, showcase our Astronauts experience and provide learnings for our Delta program. A one flight per month with Unity is a material step above competitive offerings. The total cost to support Unity's flights surpassed the relatively modest monthly revenues. Delta ships will have 50% more seats than Unity. So, using our most recent pricing of $450,000 per seat or $600,000 for research seats, the revenue per flight for a Delta ship is $2.7 million to $3.6 million. With our current expectation of Delta ships turning twice per week in steady-state operations, Delta ships would have a flight per month metric of eight, which makes the monthly revenue potential of a delta shift up to 12 times that of Unity. As a high-temperature carbon composite spaceflight, we expect each Delta ship to have a vehicle life cycle of 500 or more flights. And as we shared previously, we expect each new Delta ship to cost around $50 million to $60 million in steady-state production. Our Delta class ships are powerful economic engines. Because of their breakthrough capacity and revenue generation, we are choosing to leapfrog past our third generation ship, VSS Imagine, and move directly to our fourth generation, the Delta Class, as the model type basis for our production fleet. VSS Imagine will be used to support ground-based elements of the Delta program, and we will not bring that ship into service. Our Delta program continues to track to the key milestones we've laid out. Tooling builds have already started, and our spaceship factory in Phoenix is well underway and will come online in Q2 of 2024. Ground and flight-based testing of our Delta Class ships is on track to begin in 2025 with revenue service beginning in 2026. The top image on slide 9 shows progress that is being made on our spaceship factory in Phoenix. Construction has been advancing on schedule and we expect to begin interior fit-out in April with major assemblies from our primary suppliers, Bell & Carbon, beginning to arrive midway through 2024. We are making several upfront investments in test infrastructure, and we'll be conducting extensive ground testing of our Delta ships. This is a key factor in accelerating our flight test program and in our ability to verify the durability and longevity of our ships. Build-out and installation of this test infrastructure has begun and build-out will continue into the first half of 2024. We will incur one-time expenses for these important test assets during those periods. The first test asset is known as a Copper Bird systems mockup. The Copper Bird will allow us to configure and test our avionics, flight controls, and electrical systems. As you can see in the image on the lower left of Slide 9, this effort is already underway at our engineering headquarters in Orange County, California, along with the design and testing of our updated cabin interior, including our new seat design shown here on the lower right. The second test system, also located in Southern California, is known as an Iron Bird, and it will be verifying and cycle testing our mechanical systems and validating our designs. Each of these test systems, as well as a dedicated static test article, will enable us to verify the performance of the key elements of our Delta ships that are driving our improved turn times and will reduce the amount of time needed for final assembly, ground test, and flight test. Moving to Slide 10. We expect near-term uncertainty in capital markets to continue as high interest rates persist and geopolitical unrest expands. In response to this environment, Virgin Galactic has taken several important actions to ensure our existing cash runway is sufficient to reach positive cash flow. As a growth company that is also defining a new industry, Virgin Galactic has been pursuing two parallel work streams. Our space line operations teams have been demonstrating our technology and customer experience with our Unity spaceship. While our programs and engineering teams have been developing a production platform that will deliver profitable growth with our Delta program. Both of these areas consume substantial resources and both have been critical to our company. That said, our company's financial growth is built around our production spaceships, the Delta Class and we are shifting all company resources towards the safe, efficient, and successful execution of this program. This necessitates four changes to our near-term operating model. First, we will reduce net spending within our space line operations by decreasing the cadence, while increasing the revenue per flight of Unity's remaining missions. GALACTIC 6 is expected to take place in January as planned, and we will move to a quarterly flight cadence versus a monthly flight cadence for Unity's remaining space missions. We expect the average revenue per flight for GALACTIC 6 and GALACTIC 7 to be in the range of $2 million to $2.5 million, which is approximately four times greater than the revenue per flight that Unity realized in the third quarter. This increase is driven in part by the additional revenue seat that had previously been occupied by an astronaut instructor and in part due to a customer mix that includes research revenue. Additionally, when we have openings in the fight manifest, we are making those seats available to customers who are interested in participating in an earlier space flight at a premium price. These seats as they become available, have been priced closer to $1 million than to our prior price point of $450,000. Second, we will be pausing Unity spaceflights in mid-2024. So our highly skilled spaceline operations teams in New Mexico can support the final assembly effort of our first Delta Ships. This is cost efficient, as it allows us to optimize our total workforce. It also provides our technical operations teams, hands-on experience with the Delta Ships during the build process, which will be invaluable for maintenance and term-time support when those ships move to Spaceport America for flight test and revenue service. Flights from Spaceport America are expected to start again, in mid-2025 with Delta Fly test. Third, and as shared on our last call, we have re-sequenced the timing of our next Mothership to coincide with the ramp-up of our Spaceship fleet. This allows us to better manage the timing of our capital expenditures and it allows our engineering teams to complete the bulk of the Delta work before pivoting to the next Mothership effort. We expect the first of our next two Motherships to enter service in 2027, which will support the timing of additional Spaceships coming off the line in Phoenix. Our existing Mothership Eve is performing well following its enhancement program. And Eve will carry our first two Delta Ships during their flight test program and into revenue service in 2026, where it will support meaningful revenue and cash flow positivity. And fourth, as we focus the entire company towards a successful execution of the Delta program, Mike Moses, with his deep expertise from both NASA and Virgin Galactic will take on the expanded role of President of Virgin Galactic Spaceline. We will be aligning the entirety of our technical engineering and non-customer-facing operations teams under Mike, with a full company focus on bringing our production fleet into service, crossing over to cash flow positive operations and readying our company to scale and continue to lead this exciting industry. With these adjustments to our plans, we project our end of quarter cash and marketable securities position, nearly $1.1 billion to be sufficient to support the development and entry into service of our first two Delta Ships and to achieve cash flow positivity in 2026. These adjustments to our near-term operating model have impacts on our Flight Manifest and on our staffing levels. Regarding Manifest impacts, with Unity's fewer seats and low flight cadence, these changes will have minimal impact on total astronauts carried. However, a subset of customers who are early in the Manifest will have a longer time extension before their flights. Internally at Virgin Galactic, achieving this plan has required us to make the difficult decision to reduce the size of our teams that support our Spaceline operations and our staff areas. Our teammates at Virgin Galactic are talented, purpose-driven and they excel in their professions. And it is deeply unfortunate to part ways with some of our coworkers and our friends. With the restructuring announced yesterday, along with headcount management efforts that have been taking place across the year, we expect to enter 2024 with approximately 840 full-time employees. By taking these actions now, we ensure Virgin Galactic continues to have access to the resources needed to reach positive cash flow and to deliver on our mission, bringing the wonder space to our existing customer base and to the generations of customers who will follow. Doug, let's turn the call over to you.