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Stories, updates, insights, and original analysis from The Planetary Society.
Planetary Society solar sails paved way for Alpha Centauri starshot
A new initiative to send a fleet of tiny spacecraft to Alpha Centauri is connected to The Planetary Society through its founders and efforts to advance solar sailing technology.
LightSail 2 engineers continue to test for success
It's been a busy two months of system testing for The Planetary Society's LightSail 2 spacecraft. More trials are on the horizon, including a trip to a special magnetic cage at Utah State University's Space Dynamics Laboratory.
Full-circle ceremony sends last shuttle tank to sea
The last unflown space shuttle fuel tank is underway to California, following a full-circle ceremony in view of hardware built for the shuttle's heavy lift successor, the Space Launch System.
Last unflown space shuttle tank heads seaward for new mission
The last unflown space shuttle external fuel tank was loaded onto a barge at NASA's Michoud Assembly Facility Sunday in New Orleans. It will ship to the California Science Center in Los Angeles to be joined with space shuttle Endeavour.
Live mice, cabbage, and a drone ship: Your SpaceX Dragon launch preview
Tomorrow afternoon, SpaceX plans to launch its Dragon cargo spacecraft to the International Space Station for the first time since a catastrophic accident last June.
All about BEAM, the space station's new inflatable module
This Friday, SpaceX plans to launch a Dragon cargo spacecraft to the ISS. Packed inside Dragon's trunk is a new inflatable station module called BEAM, the Bigelow Expandable Activity Module.
In pictures: Russian cargo ship shuffle underway
Russian ISS controllers are in the process of swapping out a trash-filled cargo ship for a new one bearing fresh supplies, following the successful launch of a Progress spacecraft from Kazakhstan today.
Selfies, messages and names delivered for LightSail 2 flight
A miniature DVD containing images of space fans and names of Planetary Society members and supporters is ready to fly in space.
In pictures: Beautiful night launch sends Cygnus on its way
Here's a photo roundup from last night's Atlas V launch, which sent a Cygnus cargo craft on its way to the International Space Station.
Tonight's Cygnus launch kicks off three ISS cargo runs in three weeks
Just days after receiving three new crew members, the ISS is about to become a veritable shipping hub, as three cargo ships launch to the orbital laboratory in as little as three weeks.
Expedition 47 preview: Astronaut Jeff Williams' career spans history of ISS
NASA astronaut Jeff Williams embarks on his fourth trip to the ISS tomorrow. He launches aboard a Soyuz spacecraft from Baikonur with cosmonauts Alexey Ovchinin and Oleg Skripochka at 5:26 p.m. EDT (21:26 UTC).
Rulers in space! LightSail 2 equipped with boom fiducials
How will we tell if LightSail 2's booms are fully deployed? With fiducials—visual reference guides that feature our signature Planetary Society logo.
First SLS flight engine test goes the distance in Mississippi
A rocket engine that once blasted space shuttles into orbit was test-fired today in Mississippi, in preparation for its upcoming duty launching an astronaut crew to the moon.
Veteran space shuttle engine to be test-fired for SLS in Mississippi
An veteran engine from the space shuttle program will be test-fired tomorrow at NASA's Stennis Space Center in Mississippi, kicking off the next round of Space Launch System flight preparations.
A tribute to Scott Kelly, astronaut and human being
Thanks to social media, we get to know individual astronauts better than we have at any other time in the history of spaceflight.
One-year crew all smiles after safe landing in Kazakhstan
Scott Kelly and Mikhail Kornienko are safely back on Earth today after 340 days in space. The one-year crew duo, along with Sergey Volkov, touched down in Kazahkstan Wednesday morning.
Meet LightSail 2, The Planetary Society's new solar sailing CubeSat
The Planetary Society's solar sailing CubeSat has a new designation: LightSail 2. To celebrate the name change, we're releasing a new video showing footage from a late January sail deployment at Cal Poly San Luis Obispo.
One-year ISS mission draws to a close
Scott Kelly and Mikhail Kornienko are set to return to Earth next week after their record-breaking, year-long mission aboard the International Space Station.
Rapid Unscheduled Disassembly alert: SpaceX doesn't expect to stick upcoming rocket landing
SpaceX is launching the SES-9 communications satellite to geostationary transfer orbit. But the company says a successful first stage drone ship landing is
Virgin Galactic Unveils New SpaceShipTwo
Nearly 16 months after Virgin Galactic’s SpaceShipTwo was destroyed in a fatal accident, the company is getting ready to fly again.