Today's test flight of Starliner, NASA's new, crewed spacecraft was less than stellar. A clock set to the wrong time prevented it from docking at the International Space Station. Find out more. (4:00 min read)
Carl Sagan was born on November 9, 1934. Learn more about the movement to observe Carl Sagan day on that date every year. (4:00 min read)
We've been keeping readers informed about the Planetary Society's project known as LightSail2. This is our third update.
The Planetary Society's LightSail2 satellite has reached the next stage of its mission. Learn how it deployed its massive sail and what's next for the plucky little spacecraft.
We know everyone wrote about Apollo 11 over the weekend, but we have an angle on it that we think you'll appreciate.
Elon Musk wants to deliver broadband access everywhere on the planet. Find out how and at what cost.
Planetary Society to Launch LightSail2 on June 24. The mission will prove the feasibility of solar sailing in outer space using CubeSats.