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The Planetary Society is the largest and most effective nonprofit organization that promotes the exploration of space through education, advocacy, and…
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News
Portraits of the red planet
1+ mon, 2+ week ago (364+ words) You help us defend humanity and prevent asteroid impacts. Donate now to become a Planetary Defender! Daring to leave the cosmic shore. The Downlink • Jul 24, 2026 After Viking 1 and 2, it took 17 years before NASA launched another Mars mission. The Planetary Society…...
Quite the journey
2+ mon, 2+ week ago (405+ words) Daring to leave the cosmic shore. The Downlink • Jun 26, 2026 Axial tilt isn’t the only way for a planet to experience seasons. Mercury has a much more elliptical orbit than the other planets, meaning that it’s significantly closer to the Sun…...
The right stuff
3+ mon, 2+ day ago (145+ words) Daring to leave the cosmic shore. The Downlink • Jun 12, 2026 NASA’s Artemis program aims to advance lunar exploration in many ways, including by generating resources on the Moon. Instead of bringing everything from Earth, future Artemis crews will try to harvest…...
Artemis III crew
3+ mon, 4+ day ago (73+ words) Daring to leave the cosmic shore. Most NASA images are in the public domain. Reuse of this image is governed by NASA's image use policy. Explore related images: Artemis, Artemis 3, Human spaceflight, USA human spaceflight You are here: Home > Space…...
What we know about Artemis III: NASA announces crew
3+ mon, 4+ day ago (763+ words) Donate now to become a Planetary Defender! Daring to leave the cosmic shore. Written by Asa Stahl, PhD Science Editor, The Planetary Society June 9, 2026 Artemis III is the next step in NASA’s plan to bring humankind back to the Moon....
Are we ready to send humans to Mars?
3+ mon, 5+ day ago (506+ words) Daring to leave the cosmic shore. From Our Member Magazine Written by Mark Shelhamer June 8, 2026 Could we send humans to Mars today? Yes, given the right rocket capability and spacecraft. Would the crew survive and return to Earth to tell…...
What's actually new about NASA's Artemis missions?
3+ mon, 5+ day ago (507+ words) Comets and Kuiper Belt Objects. From Our Member Magazine Written by Asa Stahl, PhD • Science Review by Bruce Betts, PhD June 8, 2026 When NASA astronauts touch down on the Moon for the first time in over 50 years, it will mark both…...
The Mayflower Starship
3+ mon, 1+ week ago (73+ words) Comets and Kuiper Belt Objects. Bruce Murray Space Image Library Explore related images: Bruce Murray Space Image Library, Creative art You are here: Home > Space Images A final look at Vesta Map locating possible Beagle 2 landing site on Mars LightSail…...
Big impacts
3+ mon, 2+ week ago (465+ words) Comets and Kuiper Belt Objects. The Downlink • May 29, 2026 The rays extending from Tycho crater, one of the most visible craters on the Moon, are longer than those around Mercury’s Hokusai crater. They span more than 1,500 kilometers (930 miles), over 40% of the…...
The Space Advocate Newsletter, May 2026
3+ mon, 3+ week ago (382+ words) Comets and Kuiper Belt Objects. The Space Advocate • May 18, 2026 Rejection can be sweet. On April 3, as astronauts rounded the Moon for the first time in half a century, the White House again proposed draconian cuts to NASA, including a 46% reduction…...