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Sub-Topics Extraterrestrial Life Terraforming Also Try Astrobiology Lists Extrasolar Planets (SpaceRef Interactive) Provides dozens of sources of information, along with a description for each source. 8-00 Extrasolar Planets - Resources (Schneider) Provides sources of information on efforts to discover more extrasolar planets, planet that are outside of our solar system. syst 7-00 News -01-25-06 Earth-Like Planet Discovered (Times Online) "The most Earth-like planet yet discovered beyond the solar system has been detected orbiting a distant star, boosting the chances that life exists elsewhere in the galaxy." "The icy, rocky world is just five times larger than our own, making it the smallest and most similar to Earth of all the 160 "exoplanets" around other stars that astronomers have found so far." Also see Extrasolar Planets. 01-06 -02-06-06 Extrasolar Planet Art (ExtraSolar.Spaceart.org) Shows paintings of extrasolar planets, based on information about those planets. The appearance of the planets is from the artist's imagination, coupled with science. 02-06 -02-13-06 "Super-Earth" Detected (CNN News) "A cold, heavy "super-Earth" has been found orbiting a distant star through a method that holds promise for detecting faraway planets that closely resemble our own, astronomers said Monday." 03-06 -04-25-07 Potentially-Habitable Planet Found (ABC News) "What they revealed is a planet circling the red dwarf star, Gliese 581. Red dwarfs are low-energy, tiny stars that give off dim red light and last longer than stars like our sun. Until a few years ago, astronomers didn't consider these stars as possible hosts of planets that might sustain life." "The discovery of the new planet, named 581 c, is sure to fuel studies of planets circling similar dim stars. About 80 percent of the stars near Earth are red dwarfs." 04-07 -04-25-07 Potentially-Habitable Planet Found (Christian Science Monitor) "The quest to find Earth-like planets around other stars appears to have taken a significant step forward. Astronomers in Europe have detected a "super Earth" orbiting a dwarf star 20.5 light-years away." "The planet appears to be the most Earth-like of any of the more than 200 planets yet found outside the solar system." 04-07 -05-28-07 10 Intriguing Exoplanets (Space.com) "Astronomers have discovered 28 new planets outside of our solar system, increasing to 236 the number of known exoplanets, revealing that planets can exist around a broad spectrum of stellar types — from tiny, dim stars to giants." 05-07 -05-28-07 28 New Planets Discovered (MSNBC News) "Astronomers have discovered 28 new planets outside of our solar system, increasing to 236 the number of known exoplanets, revealing that planets can exist around a broad spectrum of stellar types — from tiny, dim stars to giants." 05-07 Papers "Earth-Like" Planet Found (CNN News) "In a discovery that has left one expert stunned, European astronomers have found one of the smallest planets known outside our solar system, a world about 14 times the mass of our own around a star much like the sun." "The star, mu Arae, is visible under dark skies from the Southern Hemisphere." 8-04 Antimatter Space Ships (HowStuffWorks.com) Describes how an antimatter space ship might produce a great deal more energy than any other source now known and even allow interstellar travel, travel to other planets from distant stars. 06-07 Astrobiology (SpaceRef Interactive) Provides a description of the emerging field of astrobiology and suggests how to enter it. 8-00 Astrochemistry (SpaceRef Interactive) Explores the emerging field of astrochemistry and the questions that arise from it. 8-00 Bioastronomy (IAU Commission) Provides a description of the emerging field of bioastronomy. 8-00 COMETA Report on UFO's (UFOEvidence.org) "In 1999 an important document was published in France entitled, UFOs and Defense: What must we be prepared for? ('Les Ovni Et La Defense: A quoi doit-on se préparer?'). This ninety-page report is the result of an in-depth study of UFOs, covering many aspects of the subject, especially questions of national defense. The study was carried out over several years by an independent group of former 'auditors' at the Institute of Advanced Studies for National Defense, or IHEDN, and by qualified experts from various fields. Before its public release, it has been sent to French President Jacques Chirac and to Prime Minister Lionel Jospin. The report is prefaced by General Bernard Norlain of the Air Force, former Director of IHEDN, and it begins with a preamble by André Lebeau, former President of the National Center for Space Studies (Centre National D’études Spatiales), or CNES, the French equivalent of NASA. The group itself, collective author of the report, is an association of experts, many of whom are or have been auditors of IHEDN, and it is presided over by General Denis Letty of the Air Force, former auditor (FA) of IHEDN." 11-05 Dramatic New Evidence of a Planet in Another Solar System (The Scotsman) "Astronomers said there was an 'odds-on' chance of intelligent life in space after new observations produced the best evidence yet of planets circling stars outside our solar system." "A team led by the UK Astronomy Technology Centre (ATC) in Edinburgh announced yesterday that they had found the dusty wake of a Saturn-like planet around one of the brightest stars in the sky." Professor Ian Robson said that the new tool used, with specially-cooled camera called SCUBA, 'will revolutionize our search for evidence of planetary systems.' "10-02 Extrasolar Planets Chart (Mamajek) Provides a chart identifying the planets discovered outside of our solar system, along with their characteristics and size. syst 8-00 Extreme Forms of Life on Earth (SpaceRef Interactive) Provides sources of information on extreme forms of life deep in the ocean and deep beneath the surface of the earth. Such forms of life, called extremophiles, may exist below the surface of other planets. 8-00 First Exstrasolar Planet Sighted (Nature.com) "The hunt for direct images of planets outside our Solar System has bagged its strongest candidate yet." "Recent observations from the Hubble Space Telescope have confirmed a previous sighting made in April 2004. Astronomers say they are now 99% certain that the dim and distant blob is indeed a planet." 1-05 France Releases Its UFO Data (ABC News) France is the first country to put its entire weird sightings archive online, said Jacques Patenet, who heads the space agency's UFO cell the Group for Study and Information on Unidentified Aerospace Phenomena. Unidentified Flying Objects. 03-07 Mission to Find Earth-Size Planets (NASA - Koch) Provides a description of the Kepler project, proposed to find planets in other solar systems that are as small as the earth. syst 8-00 More Planets Discovered (Washington Post) Provides short discussions about the 10 new planets that have been discovered recently. 7-00 New Planets Discovered (CNN - Space) Describes the discovery of 11 new planets outside of our solar system. One is in the "habitable" zone for life as we know it. 4-01 New Planets Forming (Scientific American) "Astronomers have gotten the best view yet of a potential planet-forming disk around a young star." 8-04 Oldest Planet "Mind-Boggling" (ABC News) "Astronomers have discovered the oldest known planet, a primeval world 12.7 billion years old that will force them to reconsider how and when planets form. The discovery raises the prospect that life may have begun far sooner than most scientists ever imagined. A leading planet-formation expert not involved in the work called the discovery mind-boggling." 7-03 Paintings of Extrasolar Planets (Cook) Provides descriptions of the planets found outside of our solar system and includes colorful paintings of how Cook imagines them to look. syst 8-00 Planet Discovered in "Life" Zone (CNN - Stenger) Describes planet found in another solar system that is the correct distance from its sun to support life. 5-01 Planetary Habitability (Wikipedia.org) "Planetary habitability is the measure of an astronomical body's potential for developing and sustaining life. It may be applied both to planets and to the natural satellites of planets." "The only absolute requirement for life is an energy source (usually but not necessarily solar energy), but the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body is able to support life. Given that the existence of life beyond Earth is currently unknown, planetary habitability is largely an extrapolation of Earth's conditions and the characteristics of the Sun and solar system which appear favorable to life's flourishing. Of particular interest is the set of factors that has sustained complex, multicellular animals and not merely unicellular organisms on this planet. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology." 01-06 Planetary Protection (SpaceRef Interactive) Explores issues related to protecting the earth, and other planets, from contamination by life forms from each other. 8-00 Planetlike Body Seen Orbiting a Star (CNN.com) "Astronomers have taken optical images of a giant planetlike body orbiting near a sunlike star, making it the closest ever observed around a star through direct imaging." 1-02 Planets - Building Planets in Cyberspace (Nasa) "Over the next few years, scientists at NASA's Jet Propulsion Laboratory plan to cook up a series of planets based on recipes like the one above and play around with the ingredients. But they won't be using real materials -- it will all be done in cyberspace. The ultimate goal is to simulate a plausible range of habitable planets, and to find out how they might appear to planet-finding missions of the future." 2-03 Planets Found - Imaginary (Walker) Creates a picture of new planet every day (from a computer program) to resemble one that may one day be found. Walker calls each a "Terranova," a New Earth. 8-01 Planets Found in Solar System Similar to Ours (University of California, Berkeley - Exoplanets.org) Provides news about the discovery of a Jupiter size planet that is in an orbit similar to the orbit of our Jupiter. 8-01 Planets in Other Solar Systems (Exoplanets.org) Provides news about the latest findings on planets in other solar systems. Also provides latest findings on existing planets, techniques for finding planets, and more. 8-01 Size and Orbits of Planets in Other Solar Systems (Exoplanets.org) Describes the mass and orbital paths of planets from other solar systems. Planets outside of our solar system are called exoplanets. 8-01 Solar Systems Similar to Ours Found (USAToday.com - Fergano) "European and U.S. astronomers Thursday announced the discovery of two solar systems with planets in orbits similar to our own, a finding that boosts the odds that they harbor extraterrestrial life." One orbits the star 55 Cancri, in the Cancer constellation. 6-02 UFO Data (National UFO Reporting Center) Provides information on Unidentified Flying Objects (UFO's). 11-05 Projects Extremophiles (NASA Science) Provides articles, lessons, and worksheets related to life forms that can thrive in very extreme conditions, such as heat, cold, pressure, radiation, salt, and even the vacuum of space. 8-00 SETI at Home (UC Berkeley - Serendip Project) Provides a screen saver that you can use at home to help find evidence of possible life outside of our solar system. The screen saver uses your computer to provide data for the search. 10-00

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