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A guide to interesting stuff going on in space science, space exploration, and space advocacy.

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The Icy Intrigue of Enceladus

Saturn’s icy moon invites further study, and The Planetary Society’s LightSail 2 spacecraft celebrates an anniversary.

Apollo 15

The colossal Apennine mountain range was the backdrop for the 4th crewed landing on the Moon. Astronauts Dave Scott, Jim Irwin, and Al Worden deployed an upgraded suite of hardware and scientific instrumentation, staying longer, roving farther, and doing more science than any Apollo mission up to that point.

Remembering Missions And Anticipating Those To Come

Reminisce about the influential Viking missions, picture seeing your all-time favorites on your wall, and get excited for what’s to come.

Enceladus, Saturn’s moon with a hidden ocean

With its subsurface ocean and so-called "tiger stripes," Enceladus is one of Saturn's most fascinating moons.

Blue Origin and Virgin Galactic: their space tourism flights explained

Though Virgin Galactic and Blue Origin have similar overarching ambitions, there are some stark differences in their approaches to suborbital space tourism.

How Dragonfly will explore Saturn’s ‘bizarro Earth’ moon, Titan

NASA's Dragonfly dual-quadcopter will carry a suite of instruments designed to analyze the surface of Saturn's moon, Titan.

Viking 1 and 2, NASA’s first Mars landers

No one knew what the surface of Mars looked like up close until NASA's Viking 1 spacecraft landed there in 1976.

The Cost of NASA's Viking missions

The Viking missions to Mars cost nearly $1.1 billion—but that's not the whole story.

Cyclones and Storms and Flares, Oh My!

Jupiter’s cyclones are beautiful, and the Sun’s storms and flares are a little bit scary.

Pluto, the Kuiper Belt’s most famous dwarf planet

Pluto is a dwarf planet and the largest of the Kuiper Belt objects (KBOs) — a collection of ice-rock bodies found outside Neptune’s orbit.

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