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Stories, updates, insights, and original analysis from The Planetary Society.
NEA Scout unfurls solar sail for full-scale test
The next time its solar sail is deployed, NEA Scout will be out near the Moon.
NASA, international partners consider solar sail for Deep Space Gateway
A Canadian Space Agency proposal would install a solar sail on the outside of the Deep Space Gateway, a miniature space station in lunar orbit.
Data Dump: NASA's Planetary Science Program By the Numbers
We provide you the gritty budget breakdown by program and mission for NASA's Planetary Science Division.
SLS CubeSats to Set Sail for Deep Space
When SLS launches Orion to the moon in 2018, a fleet of deep space CubeSats will come along for the ride, including a solar sailing spacecraft similar to LightSail.
[Updated] House NASA Funding Bill Proposes a Fantastic Budget for Planetary Science
The House Appropriations Committee released their vision for NASA's 2016 budget this week, which includes significant increases for the SLS and Planetary Science, but cuts Commercial Crew and Earth Science funds.
Can nuclear waste help humanity reach for the stars?
With the shortage of plutonium-238 to power space missions, Europe has decided to focus on an accessible alternative material that could power future spacecraft: americium-241.
Planetary CubeSats Begin to Come of Age
Van Kane rounds up some recent planetary mission concepts based on CubeSat technology.
Selecting the Next Creative Idea for Exploring the Solar System
With the release of the official Announcement of Opportunity (AO) early in November, NASA has officially begun the competition to select its next low cost ($450M) Discovery program planetary mission. Because planetary scientists are free to propose missions to any destination in the solar system other than the sun and Earth, these competitions bring out the creativity in the planetary science program.
Planetary Science Gets Its Day in Congress
Watch Planetary Society President Jim Bell testify before a congressional subcommittee on Wednesday, September 10th.
LightSail update: Launch dates
I’m excited to report some big news on The Planetary Society’s LightSail project: actual launch dates on actual launch vehicles!
A Report from the First Hearing on the 2015 NASA Budget
An animated NASA Administrator defended the commercial crew program as the fastest way to return to American access to low-Earth orbit in a hearing before the House Space Subcommittee today.
Spacecraft phone home: Cool Deep Space Network data visualization
Check out the awesome new
[Updated] To Europa!...Slowly. First Impressions of NASA's New Budget Request
Europa may get a mission...eventually. We give our first take on the 2015 NASA Budget request. How does Planetary Exploration fare? Which projects were cancelled? Will NASA capture an asteroid? And most importantly, what can you do about it?
Closing out the ASRG program
Lockheed, the prime contract on the now-defunct Advanced Stirling Radioisotope Generator program, is closing out the project and transferring its hardware to NASA's Glenn Research Center. NASA expects to save about $55 million per year.
Continued Victories for Planetary Exploration
Pat yourself on the back. Planetary exploration will be more vibrant in 2014 thanks to you. More than fifty thousand messages were sent to Congress this year, and they listened, adding back a significant amount of money in the 2014 Omnibus spending bill.
The ASRG Cancellation in Context
ASRGs could have stretched NASA's limited supply of plutonium to potentially enable missions to the perpetually-shadowed polar craters on our moon, to flyby Uranus, or to float for months on a Titan lake.
NASA Just Cancelled its Advanced Spacecraft Power Program
The Advanced Stirling Radioisotope Program (ASRG) was just cancelled by NASA. This was to be the saving grace for Plutonium-238 availability, as it was a much more efficient way to generate electricity than classic RTG systems.
Power From the Isotopes
We report on the current state of Plutonium-238 production in the United States, a crucial fuel source for planetary exploration spacecraft.
Mars Needs Plutonium! (And so do Saturn, Uranus, Neptune and Points Beyond)
Society Advocacy and Outreach Coordinator Casey Dreier visits Planetary Radio with the tale of an element that is essential to exploration of deep space.
Plutonium-238 is Crucial for Space Exploration – and it's Running Out
Plutonium-238 provides electricity to deep space missions, but NASA only has a little bit left. A new article in Wired highlights the disastrous consequences of no plutonium for use in space, something the Planetary Society is currently fighting for in Washington, D.C.



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