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Stories, updates, insights, and original analysis from The Planetary Society.
LightSail Launch Event
LightSail 2’s launch window opens on June 22, 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.
LightSail 2 set to launch next month aboard SpaceX Falcon Heavy rocket
The Planetary Society's solar sail spacecraft will lift off 22 June 2019 on a mission to demonstrate the power of sunlight for propulsion.
LightSail 2 Integrated with Prox-1 Carrier Spacecraft
The Planetary Society's solar sailing CubeSat is officially on the road to launch.
The Planetary Society Announces 2019 Call for Proposals for Shoemaker NEO Grant Program
Our grants fund amateur observers, underfunded professional observers, and observers in developing countries who make vital contributions to NEO research.
How Your Donations are Helping Planetary Society Asteroid Hunters
Each year, we ask our Shoemaker NEO Grant winners to help us tell the world about their work. Here's what they said.
SpaceX’s Falcon Heavy Flies Again; LightSail 2 Is Next!
SpaceX also went three-for-three on booster landings, marking another milestone for its Falcon Heavy rocket.
Practicing Mars 2020 rover operations, on Earth
Jeff Johnson files a report from ROASTT, the Rover Operations Activities for Science Team Training.
Planetary Deep Drill completes second field test
The work builds on a Planetary Society-sponsored test and paves the way for an ambitious expedition in Greenland this year.
Timing Is Everything
The tradition of giving to charities like The Planetary Society at year’s end often brings up questions about how to make those gifts, as well as their tax implications.
Mastcam-Z Flight Hardware!
After a more-than-four-year adventure, the flight Mars 2020 rover Mastcam-Z cameras have been fully assembled!
LightSail 2 launch pushed to early 2019
An Air Force official says an ‘initial launch capability’ is being reassessed.
The search for extraterrestrial intelligence is getting a signal boost
It's all thanks to renewed interest from NASA and a private effort to scan the skies using an array of 64 radio telescopes.
How LightSail and a NASA study helped pave the way for Mars-bound CubeSats
Two NASA CubeSats are approaching Mars — an impressive accomplishment for a concept many people regarded with derision just 15 years ago.
The day I caught rocket fever
On February 6, 2018, I found myself shoulder to shoulder with two of my heroes: Bill Nye on the left, Buzz Aldrin on the right. Our eyes were fixed on the first vertical Falcon Heavy rocket. Figuring the world's most powerful rocket might send me flying backwards once the countdown hit zero, I gripped the railing so tightly I started to lose the feeling in my fingertips.
Hayabusa2 prepares to collect samples, leave Planetary Society names on Ryugu
The names were collected by the Society in 2013, and are stored on target markers that will be dropped on the asteroid.
LightSail 2 updates: Launch date slips, environmental test complete, new video released
LightSail 2's ride to space won't happen until at least November 30, as SpaceX works through a list of other payloads in line to fly first.
Mastcam-Z Team Blog: A Special Team Photomosaic
Mastcam-Z will help the Mars 2020 rover explore the surface of Mars. Dozens of amazing scientists and engineers from across the globe contribute to the development of Mastcam-Z. This year, the team photo was taken with our very own Mastcam-Z testbed unit.
LightSail 2 team completes key mission review and dress rehearsal
The LightSail 2 team gathered in Cal Poly San Luis Obispo for a Mission Readiness Review (MRR) and Operational Readiness Test (ORT).
Planetary Society asteroid hunters help find rare type of double asteroid
A global team of astronomers has found a rare type of asteroid, where two equal-mass objects circle each other in a never-ending dance as they hurtle through the solar system.
Planetary Defense in the Moroccan Mountains
A little-known observatory is s helping usher an Arab astronomy renaissance.



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