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Richard ChuteMay 21, 2019

LightSail Launch Event

Preliminary Plans

LightSail 2’s launch window opens on June 24, and we are finalizing plans for our launch viewing celebrations. Once we have finished coordinating the details with the Air Force’s STP-2 mission team and the Kennedy Space Center, we will share them with all of our members and backers so that you can join us in person or remotely via the internet.

In the meantime, we want to share with you an outline of what we hope to offer. Below, you’ll find our plans to view the launch from the Kennedy Space Center Visitor Center and also information on how to view the launch at home.

LightSail 2 artist concept with Earth behind

Josh Spradling / The Planetary Society

LightSail 2 artist concept with Earth behind
Artist's concept of LightSail 2 above Earth.


Rocket launches are difficult to predict. Equipment issues, payload issues, weather, and other factors all play into the day and timing of the launch and, as a result, launch dates commonly change. Rocket launches are announced as being “no earlier than” (NET) a particular date, and often occur later. Our launch is set for NET June 24. It is possible that it may actually launch that day. It is also quite possible that it won’t. For that reason, anyone planning to join us should have flexible travel. For instance, airfares should include options to change days of travel, and you’ll have to closely manage hotel reservations to be sure that you can cancel or update dates. Expert tip: book accommodations as early as possible since this launch is going to be a very popular one, and hotel rooms are likely to be in short supply.

There is also a risk that we will miss the launch altogether. If the launch is scrubbed late for significant issues and delayed by a number of days, we may travel to Florida only to leave without having seen the launch and without the ability in our schedules (or pocketbooks!) to return for the actual launch days or weeks later. For that reason, it’s important to view the launch celebrations as an opportunity to gather with many other space enthusiasts, to learn more about the mission directly from those running it, to visit Kennedy Space Center, and to celebrate together. The launch is the icing on the cake. Even if we leave without seeing the launch, our later remote viewing experience will be enhanced by our time together.


Rocket launches are remarkably exciting events! If you decide to join us in Florida, you will witness the launch of what is currently the world’s most powerful rocket—the SpaceX Falcon Heavy. And, as it soars aloft, you’ll have a direct connection with this mission since it will be carrying LightSail 2. As a member or backer, you’ll have a real stake in the success of the launch on subsequent flight operations.

SpaceX Falcon Heavy rocket

Photo and animation by Ryan Chylinski (@sciencetripper) / courtesy of Spaceflight Insider

SpaceX Falcon Heavy rocket
An animated closeup of the SpaceX Falcon Heavy rocket which launched on February 6, 2018 from Kennedy Space Center in Cape Canaveral, FL from the historic launchpad, 39A.

Keeping in mind that our plans may change as we obtain new information, we are happy to share our preliminary event plans:

1 day before launch

Day of launch

Falcon Heavy launch viewing site

MaryLiz Bender

Falcon Heavy launch viewing site
Kennedy Space Center's Saturn V building offers a great view of Pad 39-A, where we watched the SpaceX Falcon Heavy demo launch on February 6, 2018.

If it doesn't launch on the first day

If you can’t make it to Florida

If you can’t see the launch in person, we encourage you to make plans to view the launch at home or with friends or other Planetary Society members at your own launch parties. To support this, we have published some tips and additional information that you can use to create your own event, and we will live stream our mission briefing so that you can participate remotely. We will also carry a live stream of the launch itself on Whether you are in Florida or Oklahoma or Belgium or Japan, you have a special connection with this launch and can celebrate it with us across multiple regions and time zones.

After the launch

After the launch, the real work begins. Several hours after launch, our next mission milestone will be the deployment of Prox-1 with LightSail 2 inside it. One week after Prox-1’s deployment, Prox-1 will deploy LightSail 2. The mission team will then run LightSail 2 through a series of tests. As soon as a few days later LightSail will deploy its solar sail and begin flight operations. We will mark these milestones by reporting on them to you via email, social media, and special blogs and Kickstarter Updates. Each of these moments may offer further opportunities for celebration.

Final thoughts

Along with our CEO, Bill Nye, I had the privilege of attending the first test flight of the Falcon Heavy rocket just over a year ago. It was the third rocket launch I've been to and it was by far the best experience I’ve had to date. The rocket is extremely powerful and seeing the twin boosters land was amazing. The timing for the upcoming launch isn't set yet, but we understand that it may be in the early morning hours, which would be visually spectacular.

What I've shared above is all subject to change once we get more detailed information from the Air Force and NASA. We want everyone to come and join us, but you'll need to do so with "eyes wide open" about the risks and rewards associated with the schedule. I hope this information sketches out a picture of what to expect.

Stay tuned!

Read more: Commercial spaceflight, Planetary Society Projects, Public Outreach, mission status, events and announcements, solar sailing, pics of hardware on earth, LightSail, Planetary Society People, Planetary Society

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