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

The Solar System from the Inside Out - and the Outside In

Space probes grant us perspective, the ability to see our place within the vastness of the solar system. But opportunities to see all of the solar system's planets in one observation are rare. In fact, there's only been one opportunity on one mission to see the whole solar system at once, until now.

Solar eclipses from space: Hinode and SDO

Two spacecraft that keep their ever-watchful eyes on the Sun -- NASA's Solar Dynamics Observatory (SDO) and JAXA's Hinode -- were doing their thing, when something large wandered past: the Moon.

Lunar eclipse tonight, mid-eclipse at 08:17 Dec 21 UT

Unless you live under a rock you probably know that there is a total lunar eclipse tonight, one that should be particularly favorable for viewing from North America but which will be at least partially visible to viewers in South America, Europe, and easternmost Asia and Australia too.

First pictures from Chang'E 2 released

Chinese Premier Wen Jiabao announced the success of Chang'E-2 lunar mission on Monday. Yong-Chun Zheng, an associate professor at the National Astronomical Observatories, Chinese Academy of Sciences, presents the mission's first released pictures.

MESSENGER: A snapshot of home

MESSENGER is in a unique position in the solar system, orbiting the Sun well within the orbit of Venus. From there, it can gaze outward from the Sun to search for tiny objects that may possibly be traveling in the same region, called vulcanoids.

New crater found in LROC image from the Moon

This news is no surprise, but I think it's the first such discovery I've heard of: the Lunar Reconnaissance Orbiter Camera (LROC) team has identified a new crater on the Moon, one that wasn't there when Apollo 15 flew over.

Volcanism across the solar system: Io

Three months ago, grandiosely, I announced that I was going to survey volcanism across the solar system, and I began the journey on Earth. Then I failed to follow up.

A bull's eye on the Moon

Orientale is the youngest large impact basin on the Moon, which means that very little of it has been obliterated by later impacts.

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