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

Sungrazing with Lovejoy's Comet

Observations of the newly sighted Kreutz sungrazer comet C/2011 W3 (Lovejoy) from the ground and from SOHO (a joint NASA/ESA satellite) and STEREO (NASA's Solar Terrestrial Relations Observatory).

Curiosity, from a 1935 perspective

With a new rover, Curiosity, on its way to Mars, Jason Davis takes a look at what we knew - or thought we knew - about the planet back in 1935.

NASA unveils Space Launch System

After months of political wrangling, NASA has finally unveiled the design of the Space Launch System, America's next deep space transportation system.

Progress comes to a halt

The first post-shuttle resupply mission in ISS history got off to a rocky start, as a Russian Progress cargo spacecraft failed to reach orbit, crashing into south central Russia.

PAMELA finds some antimatter

A team of international scientists has discovered an antiproton belt around the Earth, using data obtained from PAMELA, a particle identification instrument aboard a Russian Earth observation satellite.

NASA thinks Earth is a planet, too

Although much of the publicity NASA receives focuses on planetary exploration, Earth observing satellites like Aqua keep tabs on our home planet's weather and climate.

Beginning of the post-shuttle era

At 5:57AM EDT (9:57 UTC) this morning, Atlantis gracefully rolled to a stop on runway 15 at the Kennedy Space Center Landing Facility, completing the 135th and final mission of the space shuttle program that started in 1981.

Your guide to a shuttle landing

The final installment of my three-part series on the basics of shuttle launches and landings. Part III: de-orbiting, re-entering and landing.

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