- Cosmic Variance
 - Physicists and astrophysicists group blog discussing science, art, politics, culture, technology, academia, and miscellaneous trivia. - Martian Soil
- Daily blog dedicated to Mars, bringing the exploration of the Red Planet closer to enthusiasts and little green men alike.
- Bad Astronomy Blog
- Phil Plait's blog addressing space science, NASA missions, bad astronomy, and attacks on science.
- Observing the Sky
- Astronomer's skyblog to the skys above. Discusses all details of any object a casual observer may view on a night. Funded by NASA.
- Astronomy Blog
- Blog covering variety of topics within astronomy, with a slight bias towards the radio end of the spectrum.
- Lunar Soil
- Blog dedicated to news about our Earth's Moon and its exploration.
- Tom's Astronomy Blog
- Blogging about the latest astronomy and space news and discoveries.
- Galaxy Girl
- Collection of brief tutorials on AGN, burblings on journal articles, and descriptions of underlying physics.
- Mars Rover Blog
- Unofficial blog and forum following the Martian odysseys of NASA rovers Spirit and Opportunity.
- Cosmic Diary
- Professional astronomers blog about their lives, families, friends, and hobbies, as well as their work, latest research findings and the challenges they face. Project of the International Year of Astronomy.
- Mike Brown's Planets
- Weekly column from astronomer Mike Brown on space and science, planets (full and dwarf), the sun and the moon and the stars, and the joys and frustrations of search, discovery, and life.
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