• NASA Talk Features Automotive X Prize Winner

    Updated: 2011-04-30 22:30:27
    NASA Talk Features Automotive X Prize Winner

  • NASA Resets Shuttle Endeavour's Launch for No Earlier Than May 2

    Updated: 2011-04-30 22:30:27
    NASA managers met Friday to discuss the status of space shuttle Endeavour's launch to the International Space Station. The launch was postponed because of a heater issue associated with the shuttle's hydraulic power system.

  • NASA To Work Issue Over the Weekend and Targets Monday for Launch of Endeavour

    Updated: 2011-04-30 22:30:27
    At the post-scrub press briefing NASA launch director Mike Leinbach said they called the scrub at 12:15 pm EDT and that they will work through the issue this weekend and have set Monday as the next earliest launch attempt.

  • National Space Biomedical Research Institute honors spaceflight pioneer Dr. Joseph Brady

    Updated: 2011-04-30 22:30:27
    National Space Biomedical Research Institute honors spaceflight pioneer Dr. Joseph Brady

  • NASA Awards Specialized Engineering And Test Services Contracts

    Updated: 2011-04-30 22:30:27
    NASA Awards Specialized Engineering And Test Services Contracts

  • STS-134: Launch on Target, Fueling Complete, OMS Issue Resolved

    Updated: 2011-04-30 22:30:27
    The Orbital Maneuvering System (OMS) crossfeed valve procedure worked to alleviate the right OMS pressure issue. Both left and right tanks are balanced and are below pressure limits and there are no technical concerns for today's launch.<img src="http://feeds.feedburner.com/~r/spaceref/jext/~4/bjWkFzUjROU" height="1" width="1"/

  • NASA Commercial Crew Program Requirements Workshop

    Updated: 2011-04-30 22:30:27
    The workshop purpose is to introduce the Commercial Crew Program's requirement set and to discuss the key features of each of the documents.

  • NOAA SATOPS Morning Report: Thursday, April 28, 2011

    Updated: 2011-04-30 22:30:27
    NOAA SATOPS Morning Report: Thursday, April 28, 2011

  • NASA Scrubs Space Shuttle Endeavour Launch at Least 72 Hours

    Updated: 2011-04-30 22:30:27
    NASA has scrubbed the launch of the Space Shuttle Endeavour at least 72 hours due to a failure in one of two heater circuits. Endeavour's launch will be no earlier than Monday at 2:33 p.m. EDT.

  • Joint USAF/NOAA Report of Solar and Geophysical Activity 28 April 2011

    Updated: 2011-04-30 22:30:27
    Joint USAF/NOAA Report of Solar and Geophysical Activity 28 April 2011

  • The Silicon Valley Earth Science Cooperative Agreement

    Updated: 2011-04-30 22:30:27
    The Silicon Valley Earth Science Cooperative Agreement

  • Joint USAF/NOAA Report of Solar and Geophysical Activity 29 April 2011

    Updated: 2011-04-30 22:30:27
    Joint USAF/NOAA Report of Solar and Geophysical Activity 29 April 2011

  • Voyager set to enter interstellar space Astronomy Magazine

    Updated: 2011-04-30 05:14:42
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  • Voyager set to enter interstellar space Astronomy Magazine

    Updated: 2011-04-30 05:14:42
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  • Observe like a pirate Astronomy.com blog Astronomy.com Online Community Forums Media Galleries Blogs

    Updated: 2011-04-30 05:14:40
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  • Observe like a pirate Astronomy.com blog Astronomy.com Online Community Forums Media Galleries Blogs

    Updated: 2011-04-30 05:14:39
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  • Have a spare 100,000 Dave's Universe Astronomy.com Online Community Forums Media Galleries Blogs

    Updated: 2011-04-30 05:14:36
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  • Have a spare 100,000 Dave's Universe Astronomy.com Online Community Forums Media Galleries Blogs

    Updated: 2011-04-30 05:14:35
    , , , CURRENT ISSUE THE MAGAZINE Current Issue Next Issue Back Issues Preview the Magazine Special Issues E-mail Newsletter About the Magazine Subscribe , Renew or Give a Gift Subscriber Benefits Trips Tours Advertise Advertiser Links Sweepstakes Press Room Contact Us COLUMNISTS Bob Berman Glenn Chaple Tony Hallas David H . Levy Stephen James O'Meara NEWS OBSERVING Astronomy News Liz and Bill's Cosmic Adventures StarDome Plus Intro to the Sky Astronomy for Kids Urban Skies Astronomy Myths The Sky this Week The Sky this Month Star Atlas Ask Astro Astro Imaging Constellation Observing Glossary EQUIPMENT Products Reviews How To MULTIMEDIA Picture of the Day Reader Photo Gallery Videos Podcasts Wallpaper COMMUNITY Why Join Local Group Blog Dave's Universe Astronomy Events Astronomy Groups

  • NASA Targets Monday for Earliest Launch Attempt of Endeavour

    Updated: 2011-04-29 22:39:16
    Home SpaceRef Commercial Space OnOrbit SpaceRef Europe Astrobiology Sign In This is not a NASA Website . You might learn something . It's YOUR space agency . Get involved . Take it back . Make it work for YOU . Important Disclaimer nasawatch spaceref.com Voice 1.703.787.6567 RSS Feed Twitter Advertising Archives Support NASA Targets Monday for Earliest Launch Attempt of Endeavour By Marc Boucher on April 29, 2011 6:39 PM No Comments NASA To Work Issue Over the Weekend and Targets Monday for Launch of Endeavour SpaceRef It will be 24 hours from the scrub time before technicians can access Endeavour's aft cabin Load Control Assembly LCA The LCA , a switchbox , is now where engineers think the problem is . By dinner time Saturday managers feel they will be able to start troubleshooting the

  • Endeavour Launch Scrubbed for at Least 72 Hours

    Updated: 2011-04-29 11:57:30
    Home SpaceRef Commercial Space OnOrbit SpaceRef Europe Astrobiology Sign In This is not a NASA Website . You might learn something . It's YOUR space agency . Get involved . Take it back . Make it work for YOU . Important Disclaimer nasawatch spaceref.com Voice 1.703.787.6567 RSS Feed Twitter Advertising Archives Support Endeavour Launch Scrubbed for at Least 72 Hours By Marc Boucher on April 29, 2011 7:57 AM 8 Comments Space Shuttle Endeavour on Track for a 3:47 Launch This morning at 6:22 p.m . EDT the loading of the space shuttle's external tank with 500,000 gallons of liquid oxygen and hydrogen began and the topping off of the tank's propellants will continue until launch time . All systems onboard Endeavour are functioning normally . There is a 70 percent chance of favorable weather

  • Globular cluster Omega Centauri the Sunflower Galaxy and spiral galaxy NGC 5308 Astronomy Magazine

    Updated: 2011-04-29 08:04:26
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  • Globular cluster Omega Centauri the Sunflower Galaxy and spiral galaxy NGC 5308 Astronomy Magazine

    Updated: 2011-04-29 08:04:08
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  • NASA Commercial Crew Program Requirements Workshop

    Updated: 2011-04-29 04:55:41
    NASA Commercial Crew Program Requirements Workshop "Save the Date of May 24 and 25 for NASA's Commercial Crew Program Requirements Workshop. The workshop purpose is to introduce the Commercial Crew Program's requirement set and to discuss the key features of each of the documents. The workshop location will be near Kennedy Space Center, Florida. Details concerning the requirement set, workshop agenda/location, and registration information will be posted within 2 weeks."

  • Watching Endeavour From The Edge of Space

    Updated: 2011-04-29 03:52:58
    Home SpaceRef Commercial Space OnOrbit SpaceRef Europe Astrobiology Sign In This is not a NASA Website . You might learn something . It's YOUR space agency . Get involved . Take it back . Make it work for YOU . Important Disclaimer nasawatch spaceref.com Voice 1.703.787.6567 RSS Feed Twitter Advertising Archives Support Watching Endeavour From The Edge of Space By Keith Cowing on April 28, 2011 11:52 PM No Comments Space Shuttle Endeavour's Final Launch Inspires Hands-on Public Engagement When Space Shuttle Endeavour makes its final trip into space it will be under the watchful eye of a high altitude balloon built and flown by students and volunteers from across the U.S . This will be the second flight of a camera-equipped payload , the first having been successfully flown during in

  • On the road The Antarctic Science Symposium April 27, 2011 Astronomy.com blog Astronomy.com Online C

    Updated: 2011-04-28 23:31:50
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  • On the road The Antarctic Science Symposium April 27, 2011 Astronomy.com blog Astronomy.com Online C

    Updated: 2011-04-28 23:31:45
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  • What kind of a thinker are you Dave's Universe Astronomy.com Online Community Forums Media Galleries

    Updated: 2011-04-28 23:31:30
    , , , CURRENT ISSUE THE MAGAZINE Current Issue Next Issue Back Issues Preview the Magazine Special Issues E-mail Newsletter About the Magazine Subscribe , Renew or Give a Gift Subscriber Benefits Trips Tours Advertise Advertiser Links Sweepstakes Press Room Contact Us COLUMNISTS Bob Berman Glenn Chaple Tony Hallas David H . Levy Stephen James O'Meara NEWS OBSERVING Astronomy News Liz and Bill's Cosmic Adventures StarDome Plus Intro to the Sky Astronomy for Kids Urban Skies Astronomy Myths The Sky this Week The Sky this Month Star Atlas Ask Astro Astro Imaging Constellation Observing Glossary EQUIPMENT Products Reviews How To MULTIMEDIA Picture of the Day Reader Photo Gallery Videos Podcasts Wallpaper COMMUNITY Why Join Local Group Blog Dave's Universe Astronomy Events Astronomy Groups

  • What kind of a thinker are you Dave's Universe Astronomy.com Online Community Forums Media Galleries

    Updated: 2011-04-28 23:31:15
    , , , CURRENT ISSUE THE MAGAZINE Current Issue Next Issue Back Issues Preview the Magazine Special Issues E-mail Newsletter About the Magazine Subscribe , Renew or Give a Gift Subscriber Benefits Trips Tours Advertise Advertiser Links Sweepstakes Press Room Contact Us COLUMNISTS Bob Berman Glenn Chaple Tony Hallas David H . Levy Stephen James O'Meara NEWS OBSERVING Astronomy News Liz and Bill's Cosmic Adventures StarDome Plus Intro to the Sky Astronomy for Kids Urban Skies Astronomy Myths The Sky this Week The Sky this Month Star Atlas Ask Astro Astro Imaging Constellation Observing Glossary EQUIPMENT Products Reviews How To MULTIMEDIA Picture of the Day Reader Photo Gallery Videos Podcasts Wallpaper COMMUNITY Why Join Local Group Blog Dave's Universe Astronomy Events Astronomy Groups

  • HOTECH Astro Aimer G3 Astronomy Magazine

    Updated: 2011-04-28 23:30:47
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  • Farpoint SCT Dew Shield Astronomy Magazine

    Updated: 2011-04-28 23:25:46
    CURRENT ISSUE THE MAGAZINE Current Issue Next Issue Back Issues Preview the Magazine Special Issues E-mail Newsletter About the Magazine Subscribe , Renew or Give a Gift Subscriber Benefits Trips Tours Advertise Advertiser Links Sweepstakes Press Room Contact Us COLUMNISTS Bob Berman Glenn Chaple Tony Hallas David H . Levy Stephen James O'Meara NEWS OBSERVING Astronomy News Liz and Bill's Cosmic Adventures StarDome Plus Intro to the Sky Astronomy for Kids Urban Skies Astronomy Myths The Sky this Week The Sky this Month Star Atlas Ask Astro Astro Imaging Constellation Observing Glossary EQUIPMENT Products Reviews How To MULTIMEDIA Picture of the Day Reader Photo Gallery Videos Podcasts Wallpaper COMMUNITY Why Join Local Group Blog Dave's Universe Astronomy Events Astronomy Groups Forums

  • Hosted Payload Alliance Has Its First Meeting

    Updated: 2011-04-28 17:36:05
    Home SpaceRef Commercial Space OnOrbit SpaceRef Europe Astrobiology Sign In This is not a NASA Website . You might learn something . It's YOUR space agency . Get involved . Take it back . Make it work for YOU . Important Disclaimer nasawatch spaceref.com Voice 1.703.787.6567 RSS Feed Twitter Advertising Archives Support Hosted Payload Alliance Has Its First Meeting By Keith Cowing on April 28, 2011 1:36 PM No Comments Hosted Payload Alliance Shares Perspectives With Panel of U.S . Government Officials in First Organizational Meeting A major goal of the Hosted Payload Alliance is to serve as a bridge between government and private industry to foster an open dialogue between potential users and providers of hosted payload capabilities , said Don Thoma , chairman of the HPA Steering Committee

  • SpaceX Has Its Eyes on Mars

    Updated: 2011-04-28 17:16:45
    Keith's note: A new SpaceX Commercial Crew video shows Dragon landing - on Mars.

  • CCDev2 Press Conference

    Updated: 2011-04-28 11:27:03
    Home SpaceRef Commercial Space OnOrbit SpaceRef Europe Astrobiology Sign In This is not a NASA Website . You might learn something . It's YOUR space agency . Get involved . Take it back . Make it work for YOU . Important Disclaimer nasawatch spaceref.com Voice 1.703.787.6567 RSS Feed Twitter Advertising Archives Support CCDev2 Press Conference By Keith Cowing on April 28, 2011 7:27 AM 42 Comments As President Obama Marks Final Launch of Endeavour , Nation Looks to Commercial Space for the Future Commercial Spaceflight Federation John Gedmark concluded , We'll finally be able to realize the sci-fi future people have been dreaming about , one that inspired an entire generation of dreamers and innovators . People are again imagining a future like we saw in the landmark film 2001 : A Space

  • Astronomy in Antarctica Astronomy.com blog Astronomy.com Online Community Forums Media Galleries Blo

    Updated: 2011-04-27 21:13:56
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  • Astronomy in Antarctica Astronomy.com blog Astronomy.com Online Community Forums Media Galleries Blo

    Updated: 2011-04-27 21:13:54
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  • Meet this Newtonian astrograph telescope Astronomy Magazine

    Updated: 2011-04-27 21:13:46
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  • Meet this Newtonian astrograph telescope Astronomy Magazine

    Updated: 2011-04-27 21:13:32
    CURRENT ISSUE THE MAGAZINE Current Issue Next Issue Back Issues Preview the Magazine Special Issues E-mail Newsletter About the Magazine Subscribe , Renew or Give a Gift Subscriber Benefits Trips Tours Advertise Advertiser Links Sweepstakes Press Room Contact Us COLUMNISTS Bob Berman Glenn Chaple Tony Hallas David H . Levy Stephen James O'Meara NEWS OBSERVING Astronomy News Liz and Bill's Cosmic Adventures StarDome Plus Intro to the Sky Astronomy for Kids Urban Skies Astronomy Myths The Sky this Week The Sky this Month Star Atlas Ask Astro Astro Imaging Constellation Observing Glossary EQUIPMENT Products Reviews How To MULTIMEDIA Picture of the Day Reader Photo Gallery Videos Podcasts Wallpaper COMMUNITY Why Join Local Group Blog Dave's Universe Astronomy Events Astronomy Groups Forums

  • Video: NASA: Increasing the Awesome

    Updated: 2011-04-27 20:27:44

  • White House Logo Use Update

    Updated: 2011-04-27 18:23:34
    Home SpaceRef Commercial Space OnOrbit SpaceRef Europe Astrobiology Sign In This is not a NASA Website . You might learn something . It's YOUR space agency . Get involved . Take it back . Make it work for YOU . Important Disclaimer nasawatch spaceref.com Voice 1.703.787.6567 RSS Feed Twitter Advertising Archives Support White House Logo Use Update By Keith Cowing on April 27, 2011 2:23 PM 9 Comments White House Threatens Science Blog Over Use of Logo Electronic Frontier Foundation When Keith Cowing made an innocuous post about a meeting of the President's Council of Advisors on Science and Technology on his long-running science policy blog , Space Ref , he didn't imagine that it would trigger a phone call from the White House . But that is exactly what happened , and the White House was

  • Big Brush Fire at KSC (Update)

    Updated: 2011-04-27 18:19:57
    Home SpaceRef Commercial Space OnOrbit SpaceRef Europe Astrobiology Sign In This is not a NASA Website . You might learn something . It's YOUR space agency . Get involved . Take it back . Make it work for YOU . Important Disclaimer nasawatch spaceref.com Voice 1.703.787.6567 RSS Feed Twitter Advertising Archives Support Big Brush Fire at KSC Update By Marc Boucher on April 27, 2011 2:19 PM 1 Comment Brush Fire at KSC Near Media Center , SpaceRef A small brush fire started shortly before 1:00 pm near the Kennedy Space Center media center . At present KSC fire personnel have responded to the fire and a NASA PAO representative has said they expect to have it under control soon . As you can see by these pictures fire personnel have been stationed near the media center . Inside the media center

  • Endeavour Is Good to Go

    Updated: 2011-04-27 17:01:40
    Home SpaceRef Commercial Space OnOrbit SpaceRef Europe Astrobiology Sign In This is not a NASA Website . You might learn something . It's YOUR space agency . Get involved . Take it back . Make it work for YOU . Important Disclaimer nasawatch spaceref.com Voice 1.703.787.6567 RSS Feed Twitter Advertising Archives Support Endeavour Is Good to Go By Keith Cowing on April 27, 2011 1:01 PM No Comments It's a Unanimous Go for Endeavour The Space Shuttle Program Mission Management Team voted unanimously to proceed toward Endeavour's scheduled liftoff at 3:47 p.m . EDT Friday . Mike Moses , chair of the Prelaunch Mission Management team , reported that it was a very short meeting and everything is in great shape and ready to go . NASA Invites 150 Lucky Twitter Followers To Endeavour Launch NASA

  • Press Release: Shuttle LIFE Ready to Launch

    Updated: 2011-04-27 08:00:00
    On the Planetary Society web site: Shuttle LIFE Ready to Launch

  • Suborbital Reusable Launch Vehicles Payload Integration

    Updated: 2011-04-27 04:42:06
    NASA Solicitation: Flight and Payload Intergation Services for Suborbital Reusable Launch Vehicles "This notice is issued by the NASA/DFRC to post a draft RFP via the internet, and solicit responses from interested parties. This document is for information and planning purposes and to allow industry the opportunity to verify reasonableness and feasibility of the requirement, as well as promote competition."

  • Hunting for 2011 Eta Aquarid meteors Astronomy Magazine

    Updated: 2011-04-26 21:30:54
    CURRENT ISSUE THE MAGAZINE Current Issue Next Issue Back Issues Preview the Magazine Special Issues E-mail Newsletter About the Magazine Subscribe , Renew or Give a Gift Subscriber Benefits Trips Tours Advertise Advertiser Links Sweepstakes Press Room Contact Us COLUMNISTS Bob Berman Glenn Chaple Tony Hallas David H . Levy Stephen James O'Meara NEWS OBSERVING Astronomy News Liz and Bill's Cosmic Adventures StarDome Plus Intro to the Sky Astronomy for Kids Urban Skies Astronomy Myths The Sky this Week The Sky this Month Star Atlas Ask Astro Astro Imaging Constellation Observing Glossary EQUIPMENT Products Reviews How To MULTIMEDIA Picture of the Day Reader Photo Gallery Videos Podcasts Wallpaper COMMUNITY Why Join Local Group Blog Dave's Universe Astronomy Events Astronomy Groups Forums

  • Hunting for 2011 Eta Aquarid meteors Astronomy Magazine

    Updated: 2011-04-26 21:30:53
    CURRENT ISSUE THE MAGAZINE Current Issue Next Issue Back Issues Preview the Magazine Special Issues E-mail Newsletter About the Magazine Subscribe , Renew or Give a Gift Subscriber Benefits Trips Tours Advertise Advertiser Links Sweepstakes Press Room Contact Us COLUMNISTS Bob Berman Glenn Chaple Tony Hallas David H . Levy Stephen James O'Meara NEWS OBSERVING Astronomy News Liz and Bill's Cosmic Adventures StarDome Plus Intro to the Sky Astronomy for Kids Urban Skies Astronomy Myths The Sky this Week The Sky this Month Star Atlas Ask Astro Astro Imaging Constellation Observing Glossary EQUIPMENT Products Reviews How To MULTIMEDIA Picture of the Day Reader Photo Gallery Videos Podcasts Wallpaper COMMUNITY Why Join Local Group Blog Dave's Universe Astronomy Events Astronomy Groups Forums

  • MSFC PAO Needs an Editor

    Updated: 2011-04-26 20:48:26
    Home SpaceRef Commercial Space OnOrbit SpaceRef Europe Astrobiology Sign In This is not a NASA Website . You might learn something . It's YOUR space agency . Get involved . Take it back . Make it work for YOU . Important Disclaimer nasawatch spaceref.com Voice 1.703.787.6567 RSS Feed Twitter Advertising Archives Support MSFC PAO Needs an Editor By Keith Cowing on April 26, 2011 4:48 PM 2 Comments NASA's NanoSail-D Satellite Continues to Slowly De-Orbit Earth's Upper Atmosphere NASA's nanosatellite NanoSail-D is slowly descending after successfully orbiting the Earth's upper atmosphere for 95 days since deploying its 100-square-foot sail on Jan . 20. The small satellite demonstration experiment continues its descent towards Earth , lending key sail data to the design of de-orbit mechanisms

  • 10 top summer binocular treats Astronomy Magazine

    Updated: 2011-04-25 19:33:54
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  • Ask Astro web extra How far is the farthest satellite from Earth at this time Astronomy Magazine

    Updated: 2011-04-25 19:33:42
    : CURRENT ISSUE THE MAGAZINE Current Issue Next Issue Back Issues Preview the Magazine Special Issues E-mail Newsletter About the Magazine Subscribe , Renew or Give a Gift Subscriber Benefits Trips Tours Advertise Advertiser Links Sweepstakes Press Room Contact Us COLUMNISTS Bob Berman Glenn Chaple Tony Hallas David H . Levy Stephen James O'Meara NEWS OBSERVING Astronomy News Liz and Bill's Cosmic Adventures StarDome Plus Intro to the Sky Astronomy for Kids Urban Skies Astronomy Myths The Sky this Week The Sky this Month Star Atlas Ask Astro Astro Imaging Constellation Observing Glossary EQUIPMENT Products Reviews How To MULTIMEDIA Picture of the Day Reader Photo Gallery Videos Podcasts Wallpaper COMMUNITY Why Join Local Group Blog Dave's Universe Astronomy Events Astronomy Groups Forums

  • In search of the first galaxies Astronomy Magazine

    Updated: 2011-04-25 19:33:33
    CURRENT ISSUE THE MAGAZINE Current Issue Next Issue Back Issues Preview the Magazine Special Issues E-mail Newsletter About the Magazine Subscribe , Renew or Give a Gift Subscriber Benefits Trips Tours Advertise Advertiser Links Sweepstakes Press Room Contact Us COLUMNISTS Bob Berman Glenn Chaple Tony Hallas David H . Levy Stephen James O'Meara NEWS OBSERVING Astronomy News Liz and Bill's Cosmic Adventures StarDome Plus Intro to the Sky Astronomy for Kids Urban Skies Astronomy Myths The Sky this Week The Sky this Month Star Atlas Ask Astro Astro Imaging Constellation Observing Glossary EQUIPMENT Products Reviews How To MULTIMEDIA Picture of the Day Reader Photo Gallery Videos Podcasts Wallpaper COMMUNITY Why Join Local Group Blog Dave's Universe Astronomy Events Astronomy Groups Forums

  • You can try this at home — cosmic expansion Astronomy Magazine

    Updated: 2011-04-09 02:00:52
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    Updated: 2011-04-08 01:00:00
    Coronal Mass Ejections: Models and Their Observational Basis by: P. F. Chen Coronal mass ejections (CMEs) are the largest-scale eruptive phenomenon in the solar system, expanding from active region-sized nonpotential magnetic structure to a much larger size. The bulk of plasma with a mass of ∼1011 – 1013 kg is hauled up all the way out to [...]

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