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

Equinox and equilux

Celebrate today’s equinox, but be sure to check when your location’s equilux takes place. And there’s lots to celebrate about this year’s Day of Action.

Lost and found

Some things are lost — Moon rocks, Io’s water, even (briefly) the Sun’s light — but what we find in space is so much greater.

See for yourself

See the month’s coolest space pictures, see planets in the night sky, and create the future in space that you want to see.

Moonstruck

From asteroid impacts to spacecraft landings (whether successful or not), the Moon is no stranger to being struck.

Storms and showers

Mars has storms of dust, while Saturn pours down ammonia rain. Here on Earth, we passed through a debris tail to get a special kind of shower.

Hasta la vista, baby

Terminators abound this week in space, and we’ll be back to Mars if NASA gets the budget it needs.

Far out, man!

Faraway spacecraft, distant objects, the lunar farside, and a pretty out-there art project.

Aquatic equivalencies

From searching for life to training for spaceflight, water is an essential part of space exploration.

That’s a mare

An unusual lunar feature, Saturn’s shining rings, and Mars’ complex gullies.

Rings and dings

From Saturn’s magnificent rings to Mercury’s surface dings, this week brings great new images and science from across the Solar System.

Way out there

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

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).

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