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Short- and Long-Term Propagation of Spacecraft Orbits

The Planetary Observer Planning Software (POPS) comprises four computer programs for use in designing orbits of spacecraft about planets. These programs are the Planetary Observer High Precision Orbit Propagator (POHOP), the Planetary Observer Long-Term Orbit Predictor (POLOP), the Planetary Observer Post Processor (POPP), and the Planetary Observer Plotting (POPLOT) program.

Planetary Society Steps Beyond Moon for Roadmap to Space

Washington, D.C. — The Planetary Society today outlined a vigorous new approach to space exploration for the consideration of the new U.S. Administration and Congress. "Beyond the Moon: A New Roadmap for Human Space Exploration in the 21st Century" calls for the United States to create -- in cooperation with international partners -- a space program that is as inspiring as it is sustainable in the world’s current economic climate.

Extrasolar planetary system makes pictorial debut

This historic infrared portrait is the first to show a planetary system beyond the solar system. A trio of planets (faint dots indicated with arrows) orbits the young, massive star HR 8799, some 130 light-years from Earth. Each of these planets is several times as heavy as Jupiter and thought to be, like Jupiter, a gas giant.

Closest Planetary System Hosts Two Asteroid Belts

New observations from NASA's Spitzer Space Telescope indicate that the nearest planetary system to our own has two asteroid belts. Our own solar system has just one.

Closest Planetary System Hosts Two Asteroid Belts

New observations from NASA's Spitzer Space Telescope indicate that the nearest planetary system to our own has two asteroid belts. Our own solar system has just one.

Quartz-like crystals in planetary systems

NASA’s Spitzer Space Telescope has, for the first time, detected tiny quartz-like crystals sprinkled in young planetary systems. This photograph shows a crystal, which is a type of silica mineral called cristobalite.

Gemini Releases Historic Discovery Image of Planetary 'First Family'

Astronomers using the Gemini and Keck observatories have obtained the first direct images of a planetary family around a normal star. Full Story

First Mars, Then Moon, Claims Planetary Society

While one of our previous articles stated the exact opposite of what you’ve just read, now, NASA is advised otherwise by experts from the Planetary Society (a team of space experts and enthusiasts from more than 125 countries). In a recent report, they claim that the plans made by president Bush, which saw a manned mission back to the Moon by 2020, should be widened, and the focus of space missions taken beyond Earth and Moon.

First Images Captured of Alien Solar System

Two new planetary systems have been imaged in the Milky Way: a star boasting three planetary siblings and another harbouring one at a large distance from its star.

Planetary "First Family" Discovered By Astronomers Using Gemini and Keck Observatories

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Planetary "first family" discovered by astronomers using Gemini and Keck Observatories

Astronomers using the Gemini North telescope and W.M. Keck Observatory on Hawaii's Mauna Kea, the tallest mountain in the Hawaiian chain, have obtained the first-ever direct images identifying a multi-planet system around a normal star.

Planetary Society Steps Beyond Moon for Roadmap to Space

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Planetary Disk Quartz Spotted

The Spitzer Space Telescope has recently made a startling discovery as it was scouring the skies in thorough observation of five young planet-nascent disks approximately 400 light years away from the Earth. While it was largely known that crystallized dust particles constantly lump up into larger versions, ultimately the size of planets, the discovery of silica-based (oxygen and silicon) cristobalite and tridymite crystals in the protoplanetary disks surprised them.

Planetary Goo and the Threat of Vegetarianism

Probe finds mystery substance on Mercury ... Military paints Twitter as possible terror tool ... Ubuntu releases its latest version ... Christian Science Monitor quits daily printing ... Web giants sign on to protect human rights, and more.

NAI Planetary System Formation Focus Group Meeting

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Nearest planetary system boasts two asteroid belts

Two asteroid belts have been discovered around the nearby star Epsilon Eridani. Comets from an unseen third debris belt are illustrated in the upper-right corner. (Illustration: NASA/JPL-Caltech)

First ever glimpse of new planetary system

The Hubble space telescope is one of Nasa's most important achievementsWe take a look at the highs and lows of the past five decades of the National Aeronautics and Space Administration (Nasa). Full Story

First Direct Images Of A Planetary Family Around A Normal Star

Astronomers using the Gemini North telescope and W.M. Keck Observatory on Hawaii’s Mauna Kea have obtained the first-ever direct images identifying a multi-planet system around a normal star.

Former NASA Advisory Council Chair Jack Schmitt Quits Planetary Society Over New Roadmap

Editor's note: The following email was sent to various members of the media and has been making the rounds.

Former NASA Advisory Council Chair Jack Schmitt Quits Planetary Society Over New Roadmap

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Mobile Robot for Exploring Cold Liquid/Solid Environments

The Planetary Autonomous Amphibious Robotic Vehicle (PAARV), now at the prototype stage of development, was originally intended for use in acquiring and analyzing samples of solid, liquid, and gaseous materials in cold environments on the shores and surfaces, and at shallow depths below the surfaces, of lakes and oceans on remote planets. The PAARV also could be adapted for use on Earth in similar exploration of cold environments in and near Arctic and Antarctic oceans and glacial and sub-glacial lakes.

Mars Exploration Rovers Update: Spirit Recupes from Dust Storm, Opportunity Hits on Santorini

THE PLANETARY SOCIETY - The largest independent, nonprofit, nongovernmental space advocacy group on Earth.

NASA Successfully Tests First Deep-Space Internet

The "inter-planetary Internet" doesn't use TCP/IP. With the Disruption-Tolerant Network (DTN), data packets are not discarded if a destination path cannot be found. Instead, each network node keeps the information until it can communicate safely with another node.

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