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Latest:Evidence of Water Flows Found at Mars
Evidence of ancient water is found byMars Exploration Rover Opportunity, according to a paper published in the May 4 edition of the journal Science entitled, “Ancient Impact and Aqueous Processes at Endeavour Crater, Mars.” The latest discovery was made at the rim of the Endeavour Crater, a large ancient impact crater on Mars measuring 14 miles in diameter.The rover discovered evidence for low temperature liquid water and environments that would be conducive for life.Opportunity was one of two exploration rovers that landed on Mars eight years ago for what was originally planned as a three-month mission. Opportunity found highly elevated levels of zinc in some of the rocks at the rim of the crater, suggesting that there was a hydrothermal system — warm water — running through the rocks at one time. In addition, veins of gypsum discovered at the crater were strong evidence that low temperature waters had at one time passed through those rocks.
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Related articles
- Mars Opportunity rover reaches Endeavour crater, finds signs of ancient Martian water (arstechnica.com)
- Mars rocks could shelter life, new study finds (msnbc.msn.com)
- Rover reaches Martian crater destination – finally (cbsnews.com)
- The Mars rover stays in the picture (photoblog.msnbc.msn.com)
Posted in News, opinions, Solar System, Universe
Tagged cars, mars opportunity rover, martian crater, science, transportation
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10 Blogs for Star Gazers
Guest Post by Gordan Smith
Astronomy being one of our favorite hobbies, we try to keep abreast of the subject as much as we can. Fortunately, there’s an abundance of available resources online that cater to both amateur and experienced astronomers alike. Photo galleries, star maps, equipment advice, plus tips on where to look in the night sky are just a few of the resources at the stargazer’s disposal online. The following are ten blogs where stargazers go to gaze and contemplate:
- Bad Astronomy(Discover Magazine) – Created by Phil Plait, who spent ten years working on that little project known as the Hubble Telescope, and authored numerous articles as well as two books on the subject of astronomy. Check out one of his books here.
- Skymania – A UK-based astronomy site that’s rich in news resources for the novice astronomer. Check out the Sky Tonight tab for current tips on what’s going on overhead, and where to find it. The Stargazing tab is a handy link to begin if you’re unsure where to start.
- Wonders of Stargazing – This blog was created by the folks at Skymania, and is especially designed for targeting the beginner stargazing audience. Tips on night sky viewing, nearby planets, the moon, and even help with selecting a telescope are provided through the tabbed menu on the header.
- NASA Blogs – Here is where space cadets can stay on top of what’s happening at NASA. There are also blogs for various ongoing projects and events, like a recent fireball sighting over Georgia and asteroid tracking noted in the Watch The Skies section.
- Astroblog – Ian Musgrave of Adelaide, South Australia covers the Southern Hemisphere for astronomy buffs. He and his 8” scope, Don, partner to bring visitors some rather spectacular images and his blog makes for some very educational reading.
- The Planetary Society – Co-founded by none other than Carl Sagan, this site is dedicated to the promotion of space exploration. Take a tour through the site, and discover all that the Society is involved in. Start with the Explore tab, and prepare to be amazed.
- Universe Today – Fraser Cain, partnering with Phil Plait of the aforementioned Bad Astronomy fame (see #1), publishes this blog, whose Guide to Space tab, and forum are enormously instructional for the novice stargazer.
- Will Gater – For truly awe-inspiring celestial photos, Will Gater’s blog is a guaranteed hit. Take a tour through his impressive library of astrological images, spend some time reading his enlightening micro-blog journal, or peruse any of his available articles for a more in-depth look at his take on astrology.
- Astronomy Picture of the Day – Speaking of astro-images, on this site you can find a huge archive of deep space images, submitted from various sources, including NASA. Many of the full-resolution photos are visually astounding.
- Women in Astronomy – Filling a unique and welcome niche for the stargazing community, Women in Astronomy provides enlightening background and inspirational examples for the budding future ladies of the cosmos.
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Posted in Guest Post
Tagged adelaide south australia, astronomy buffs, hubble telescope, research
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