Blogroll

• Asymptotia
  Clifford V. Johnson, professor at the Department of Physics and Astronomy, USC.
• Bad Astronomy Blog
  The One. The Only. The Bad Astronomy Blog.
• Beep! Beep! It's Me
  Diagonally parked in a parallel universe.
• Circular Reasoning
  An archive site for the Skeptics' Circle.
• Cosmic Variance
  Random samplings from a universe of ideas.
• Earth & Sky
  Blogging Home of the Earth & Sky radio Series.
• Galactic Interactions
  The weblog of Rob Knop, assistant professor of Physics and Astronomy at Vanderbilt University.
• LiveScience Blogs
  Your daily dose of science scuttlebutt.
• Nature Blogs
  Blogs listing from the scientific journal Nature.
• Out of the Cradle
  Chronicles of the New Space Age.
• Pharyngula
  Paul Z. Myers' fantastic weblog. All things biological.
• Pictures of My Universe
  Jim Scotti's Photoblog.
• Planetary Society Weblog
  Emily Lakdawalla's guide to interesting stuff going on in space science, space exploration, and space advocacy.
• Rationally Speaking
  Devoted to rational discourse on science, philosophy, social and political issues.
• SciAm Observations
  Opinions, arguments and analyses from the editors of Scientific American.
• ScienceBlogs
  The web's largest conversation about science.
• Skeptico
  Critical thinking for an irrational world.
• Star Stryder
  Exploring the sky one day at a time, with astronomer Pamela Gay.
• The Tangled Bank
  Science blogging at its finest.
• Tom’s Astronomy Blog
  Astronomy News, Notes, and Observations.
• Wolfgang Schlegl's Photoblog
  A picture a day.

Astronomy & Space

• Absolute Astronomy
  Facts and statistical information about planets, moons, constellations, stars, galaxies, and Messier objects.
• American Astronomical Society
  The major organization of professional astronomers in North America.
• Astronomy Basics
  Essential concepts in astronomy — the science and the hobby.
• Astronomy Cafe
  The web site for the astronomically disadvantaged.
• Astronomy Magazine
  Astronomy magazine main page.
• Astronomy Notes
  Graciously offered to the net as a resource in astronomy education.
• Astronomy Online
  Astronomy topics, news, forums, resources, and more.
• Astronomy Picture Of the Day
  Discover the cosmos!
• Astronomy Software
  A most comprehensive list, with links.
• Austin Astronomical Society
  Homepage for the AAS.
• Bad Astronomy
  Phil Plait's outstanding Bad Astronomy website.
• CalSKY
  #1 astronomical and space calendar.
• Clear Sky Clock Home Page
  Spiffy observing conditions resource for amateur astronomers.
• Cloudy Nights
  Your astronomical community. The biggest & best.
• Curious About Astronomy?
  Ask an astronomer! Wonderful resource offered by Cornell.
• European Space Agency
  ESA's main portal.
• Heavens-Above
  Wonderful resource for satellite observing, spaceflight, and observational astronomy.
• Jet Propulsion Laboratory
  JPL at the California Institute of Technology.
• Moon Base Clavius
  Did we really go to the Moon? You bet.
• NASA
  National Aeronautics and Space Administration -- Your portal to space exploration.
• NASA TV
  Watch NASA Television live.
• PhysLink
  Physics & Astronomy Online.
• Sky & Telescope
  Sky & Telescope magazine main page.
• Spaceflight Now
  Spaceflight news, updated daily.
• SpaceRef.com
  Space News as it happens.
• SpaceWeather
  News and information about the Sun-Earth environment.
• Stardate Online
  Your guide to the Universe. (From McDonald Observatory, University of Texas.)
• Telescopes & Binoculars
  How to choose, use, and get the most out of your instrument.
• The Nine Planets
  Bill Arnett's marvelous guide to our solar system.
• The Planetary Society
  The Planetary Society home page.
• Universe Today
  Space news from around the Internet, updated every weekday.
• Visual Observing Guide
  How to see the wonders of the heavens with your own eyes — with or without a telescope.
• What's Up - 365 Days of Skywatching
  Your daily guide to astronomical events, observing highlights, and related historical perspectives.
• Woldwide Astronomy 101
  Lecture series courtesy of Bruce Betts and The Planetary Society.

Astrophotography

• Adam Block
  Caelum Observatory -- a window to the universe.
• Brad Moore
  Astrophotography of Southern celestial marvels.
• Chris Cook
  Astronomical & Nightscape Photography.
• Daniel Verschatse
  Marvelous astrophotography from the Antilhue Observatory in Chile.
• Greg Piepol
  Outstanding solar imaging.
• Jason Ware
  Galaxy photography and digital imaging.
• Jerry Lodriguss
  Deep-sky astronomical photographs, tips and techniques for digital astrophotography, and image processing in Photoshop.
• Matt BenDaniel
  Gallery of astrophotographs of celestial objects in deep space.
• Noel Carboni
  Lunar, planetary, and deep-sky images.
• R. Jay GaBany
  Cosmotography -- CCD images of the heavens.
• Robert Gendler
  The Universe in Color.
• Russell Croman
  Fine Photographs of Celestial Wonders.
• Stefan Heutz
  Astronomieseiten -- featuring fine astro-images from Germany.
• Stefan Seip
  Astromeeting -- pictures of our universe.
• Thomas V. Davis
  Painting With Starlight.

Skepticism

• Committee for Skeptical Inquiry
  The Committee for Skeptical Inquiry encourages the critical investigation of paranormal and fringe-science claims from a responsible, scientific point of view.
• James Randi Educational Foundation
  JREF - an educational resource on the paranormal, pseudoscientific & the supernatural.
• Massimo Pigliucci's Web
  Rationally Speaking - A Skeptic & Humanist resource.
• North Texas Skeptics
  This is the site for information on UFOs, creationism, pseudoscience, faith healing, psychics, and other nonsense.
• Penn & Teller
  A couple of eccentric guys who have learned how to do a few cool things.
• Skeptic Report
  C.F. Larsen's domain. Pay attention to the writing on the wall.
• Snopes
  Urban Legends Reference Pages.
• Stop Sylvia Browne
  A critical look at the claims, predictions and behavior of a media "psychic".
• The Crackpot Index
  A simple method for rating potentially revolutionary contributions to physics.
• The Debunker's Domain
  Robert Sheaffer - Skeptical to the Max.
• The Klass Files
  Online archive of Philip J. Klass' Skeptics UFO Newletter.
• The Secular Web
  ... a drop of reason in a pool of confusion.
• The Skeptic's Dictionary
  Robert Todd Carroll's website devoted to skepticism, critical thinking, and logic.
• The Skeptics Society
  Michael Shermer tackles extraordinary claims, revolutionary ideas, and the promotion of science.
• The Skeptiseum
  The skeptical museum of the paranormal, hosted by CSICOP.
• The Straight Dope
  Fighting ignorance since 1973.
• The Woo-Woo Credo
  To be a proper woo-woo, you must follow these rules...
• Timothy Campbell
  Timothy Campbell's home page. It's a site on the internet!
• UFOs & Art? Not.
  Debunking claims of UFOs in period artwork.
• UFOs: A Skeptical View
  Tim Printy's excellent compositions on UFOs, Roswell, and related myths.

Evolution Resources

• AntiEvolution.org
  Tools to critically examine the antievolution movement.
• Evolution and Paleontology
  Brilliant website from the Smithsonian devoted to evolutionary science, biology, and paleontology.
• Evolution is Not a Religion
  Excellent entry at SkepticWiki.
• Hall of Human Ancestors
  From the Smithsonian: the fossil record of the lineage of early humans as we know it today.
• IDwatch at CSICOP
  Hosted by the Committee for the Scientific Investigation of Claims of the Paranormal
• Index of Creationist Claims
  A compendium of popular, errant, creationist claims, complete with fully referenced refutations.
• National Academy of Sciences
  Evolution resources From the National Academies.
• National Center for Science Education
  A nationally-recognized clearinghouse for information and advice to keep evolution in the science classroom.
• Resources at AAAS
  Hosted by the American Association for the Advancement of Science
• Richard Dawkins
  A clear-thinking oasis.
• Talk Reason
  Defending proper science against attacks waged by creationist pseudo-science.
• Talk.Origins
  Fantastic website & newsgroup devoted to the discussion of issues related to biological and physical origins.
• Talkdesign.org
  Critically examining the "intelligent design" movement.
• Texas Citizens for Science
  What Texas schools need is a moment of science!
• The Panda's Thumb
  Dedicated to explaining the theory of evolution, critiquing the claims of the anti-evolution movement, and defending the integrity of science and science education in America and around the world.
• The Tree of Life Project
  Providing information about the diversity of organisms on Earth, their evolutionary history (phylogeny), and characteristics.
• Understanding Evolution
  Your one-stop source for information on evolution.

Terrestrial

• Astronaut Photography
  The best and most complete online collection of astronaut photographs of the Earth.
• Earth & Sky
  Science. Nature. People.
• Earth Observatory
  Providing new satellite imagery and scientific information about our home planet to the public.
• Earthquake Hazards
  Information on worldwide earthquake activity, earthquake science, and earthquake hazard reduction.
• Earthquake Myths
  Common misconceptrions refuted, courtesy of the US Geological Survey.
• GOES
  Geostationary Satellite Server.
• Google Earth
  Combines satellite imagery & maps to put the world's geographic information at your fingertips.
• NASA World Wind
  Zoom from satellite altitude into any place on Earth.
• National Weather Service
  Courtesy of the NOAA.
• NOAA
  National Oceanic & Atmospheric Administration.
• US Geological Survey
  Undertaking impartial study of the landscape, our natural resources, and the natural hazards that threaten us.
• Visible Earth
  A catalog of NASA images and animations of our home planet.

Exploration

• Apollo Lunar Surface Journal
  A compendium of all things Apollo.
• Astronaut Biographies
  From the Johnson Space Center.
• Crew Exploration Vehicle
  The next generation of manned spaceflight.
• ESA Human Spaceflight
  European Space Agency's human spaceflight & exploration page.
• Exploration Systems
  The beginning of an expanded human presence in the solar system.
• History of US Space Flight
  From NASA's Kennedy Space Center.
• James Oberg
  Jim Oberg's Pioneering Space.
• Moon, Mars & Beyond
  The Vision for Space Exploration.
• NASA Discovery Program
  Reaching into the unknown, doing what's never been done before, and driving new technology innovations.
• NASA Human Spaceflight
  The latest from NASA's programs.
• NASA Science Missions
  NASA science missions, past, present, and future.
• PlanetQuest
  The Search for another Earth.
• Space Shuttle
  The most complex machine ever built.

Observatories

• Canada-France-Hawaii Telescope
  A world class 3.6 meter telescope atop Mauna Kea.
• Chandra X-Ray Observatory
  NASA's flagship mission for X-ray astronomy.
• European Southern Observatory
  ESO: an intergovernmental, European organisation for astronomical research.
• Gemini Observatory
  Exploring the Universe from both hemispheres.
• Hobby-Eberly Telescope
  Part of the McDonald Observatory Complex in Texas.
• Hubble Space Telescope
  HubbleSite, home of the Hubble Space Telescope.
• James Webb Space Telescope
  Infrared-optimized space telescope, scheduled for launch in 2013.
• Keck Observatory
  The world's largest optical and infrared telescopes.
• Kitt Peak National Observatory
  Located outside Tucson, AZ.
• Large Binocular Telescope
  Atop Mt. Graham, Arizona.
• National Optical Astronomy Observatory
  The national center for ground-based nighttime astronomy in the United States.
• Sloan Digital Sky Survey
  The most ambitious astronomical survey ever undertaken.
• Solar & Heliospheric Observatory
  SOHO -- detailed observations of the Sun, 'round the clock.
• Spitzer Space Telescope
  Part of NASA's Astronomical Search for Origins Program.
• William Herschel Telescope
  The largest of the telescopes at the Canarian Observatories.
• World's Largest Telescopes
  A list of the largest optical apertures on the planet.

Cosmology

• Cambridge Cosmology
  University of Cambridge page spanning numerous facets.
• Cosmology 101
  The scientific study of the large scale properties of the Universe as a whole. Courtesy of WMAP.
• Cosmology and the Big Bang
  Marvelous resource at Cornell.
• Cosmology FAQs
  Resources presented by the Berkeley Cosmology Group.
• Cosmology Primer
  A brief introduction to the basic picture of modern cosmology.
• Cosmology Tutorial
  Excellent compliation by Ned Wright.
• Evidence for the Big Bang
  Handy new list courtesy of TalkOrigins.
• Misconceptions
  Scientific American article.
• Paul J. Steinhardt
  The Cyclic Universe - a fascinating model.
• Q & A: Cosmology
  Questions about the Big Picture: the size, age, mass and origins of the universe.

Podcasts

• Are We Alone?
  SETI Radio with host Seth Shostak -- broadcasting science and skepticism.
• Astronomy a Go-Go
  An astronomy podcast and blog for everyone.
• Astronomy Cast
  A fact-based journey through the cosmos.
• Audio Martini with Rick Wood
  Radio program relating to the paranormal from a skeptic's point of view.
• Earth & Sky Radio Series
  Every day, over three million people learn about sustaining a vibrant and healthy planet at Earth & Sky.
• JPL Podcasts
  News and features from the Jet Propulsion Laboratory.
• Let's Talk Stars
  Astronomy talk radio hosted by David H. Levy.
• NASAcast
  Download the universe.
• Planetary Radio
  Weekly broadcast aired by The Planetary Society.
• PlanetQuest
  Ongoing news, features and interviews about the search for new planets and life around other stars.
• Point of Inquiry
  The Center for Inquiry’s radio show and podcast
• Radio Astronomy Podcasts
  From NRAO and the monthly radio show "Mountain Radio Astronomy"
• Science
  From the journal Science, broadcast by the AAAS.
• Science @ NASA
  Feature stories from NASA's Science and Technology Directorate.
• Science Friday
  From NPR -- Making science radioactive. Hosted by Ira Flatlow.
• Skepticality
  Truth in Podcasting.
• SkyTonight Podcasts
  Monthly observing highlights hosted by Kelly Beatty, editor of Night Sky magazine.
• SkyWatch
  Highlights news from the world of astronomy. A HubbleSite feature.
• Slacker Astronomy
  Because if you aren't going to care about something, you may as well not care about astronomy.
• Spitzer Podcasts
  Audio updates from the Spitzer Space Telescope.
• Universe Today Podcasts
  Audio features brought to you by Fraser Cain, publisher of Universe Today.