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Stories, updates, insights, and original analysis from The Planetary Society.

Are aliens real?

An exploration of whether aliens are out there, what kind of extraterrestrial life is most likely to exist, and how we're looking for it.

Space salads and salty waters

The two winning proposals in the 2023 round of STEP grants are a project that will compare different methods of growing edible plants in simulated deep-space exploration conditions, and a project that will study salty lakes on Earth that share characteristics with the past and present oceans of other planets and moons.

Way out there

We’re always learning more about the worlds of the outer Solar System, and even those beyond.

Why is Venus called Earth’s twin?

Although Venus and Earth have many differences, they're often called twins because of some key similarities. Looking back to the two planets' early history, the similarities run even deeper.

Moonshadow, Moonshadow

The Moon casts shadows on itself and on Earth, environmental concerns overshadow a test launch’s success, and exoplanets are awesome (beyond a shadow of a doubt).

What happened with Psyche?

When the Psyche mission missed its launch date in 2022, it caused a ripple-effect of delays and budget woes for other JPL-led missions. Dr. Laurie Leshin, JPL's new director, shares her insights into the unique challenges facing her team and what she's doing to change JPL for the better.

Have a nice flight!

Flying on Titan is easy, but not as easy as flying on Deimos. Plus, Juice takes off and Ingenuity captures a view from the air.

Rocket flight and the five dwarfs

Meet the Solar System’s five official dwarf planets, celebrate two major launches, and find out why planets sometimes seem to go backwards across the sky.

What does “Mercury in retrograde” actually mean?

"Mercury in retrograde" is one of the most searched terms relating to the planet. Astrological interpretations aside, apparent retrograde motion is an interesting phenomenon that has to do with orbital speeds and observer perspective.

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