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http://www.abc.net.au/science/news/topic/space/4282472: Explore a galaxy, far, far away
ABC

Direct link Explore a galaxy, far, far away

31 Jul 2015, 02:38 UTC
tag:blogger.com,1999:blog-6762481015010870446.post-2921586303612986895: Russia Reveals Long-term Plans for Its Angara Launch Vehicle
Astro Watch

Direct link Russia Reveals Long-term Plans for Its Angara Launch Vehicle

30 Jul 2015, 23:44 UTC <div class="separator" style="clear: both; text-align: center;"><a href="http://1.bp.blogspot.com/-Ib5T2I-J_LM/Vbq2gdy39oI/AAAAAAAAwY4/i6G1uiWT_jE/s1600/1076285.jpg" style="margin-left: 1em; margin-right: 1em;"><img alt="Angara-5 rocket launches from the Plesetsk Cosmodrome on Dec. 23, 2014. Photo Credit: Russia's Defence Ministry press service/TASS" border="0" height="322" src="http://1.bp.blogspot.com/-Ib5T2I-J_LM/Vbq2gdy39oI/AAAAAAAAwY4/i6G1uiWT_jE/s640/1076285.jpg" title="Angara-5 rocket launches from the Plesetsk Cosmodrome on Dec. 23, 2014. Photo Credit: Russia's Defence Ministry press service/TASS" width="640" /></a></div><br /><span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><div style="text-align: justify;">The Khrunichev State Research and Production Space Center, a Moscow-based rocket manufacturer, has revealed its long-term plans for the newest Russian Angara launch vehicle. According to the company’s announcement, the rocket’s busy launch manifest includes 10 test launches in the next few years and a possible participation in the Sea Launch project. The plan also envisions developing reusable stages for Angara around 2025.<a name="more"></a></div><div style="text-align: justify;"><br /></div><div style="text-align: justify;">Khrunichev plans to complete test launches of Angara heavy carrier rocket from the Plesetsk Cosmodrome by 2020 when the serial production of the booster will start.</div><div style="text-align: justify;"><br /></div><div style="text-align: justify;">"The first Angara launch from the Vostochny Cosmodrome is set for 2021. In general, around 10 test-launches of Angara heavy rockets and four test launches of [Angara] light rockets are planned," said Alexander Medvedev, the chief designer of the Khrunichev Space Center.</div><div ...
https://medium.com/p/f380f9bc2600: Throwback Thursday: What is a variable star?
Starts With a Bang!

Direct link Throwback Thursday: What is a variable star?

30 Jul 2015, 22:17 UTC
http://feeds.feedburner.com/07fc1c01-0927-4e00-d7d2-aeb0d81dcccd: Rosetta's Comet Does Battle With the Solar Wind
Discovery News - Space News

Direct link Rosetta's Comet Does Battle With the Solar Wind

30 Jul 2015, 20:38 UTC
tag:blogger.com,1999:blog-6762481015010870446.post-8740336431061951270: Lockheed Martin Successfully Tests Design Changes for Orion Spacecraft’s Fairing Separation System
Astro Watch

Direct link Lockheed Martin Successfully Tests Design Changes for Orion Spacecraft’s Fairing Separation System

30 Jul 2015, 20:00 UTC <div class="separator" style="clear: both; text-align: center;"><a href="http://4.bp.blogspot.com/-E3ilOpnte2M/VbqBcltBfeI/AAAAAAAAwYM/nStTeseslCA/s1600/orion_fairing_test_16jun2015_4529.jpg" style="margin-left: 1em; margin-right: 1em;"><img alt="An Orion fairing panel separates during a June test at Lockheed Martin's facility in Sunnyvale, California. Three fairing panels encase Orion's service model to protect it during ascent to space and are jettisoned once they are no longer needed. Credits: Lockheed Martin" border="0" height="334" src="http://4.bp.blogspot.com/-E3ilOpnte2M/VbqBcltBfeI/AAAAAAAAwYM/nStTeseslCA/s640/orion_fairing_test_16jun2015_4529.jpg" title="An Orion fairing panel separates during a June test at Lockheed Martin's facility in Sunnyvale, California. Three fairing panels encase Orion's service model to protect it during ascent to space and are jettisoned once they are no longer needed. Credits: Lockheed Martin" width="640" /></a></div><br /><span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><div style="text-align: justify;">NASA’s prime contractor for Orion, Lockheed Martin, successfully completed two ground-based tests to evaluate how Orion’s fairing panels will separate from the spacecraft on its way to space. The tests incorporated several changes designed to reduce spacecraft mass and help further prepare Orion for its first mission atop NASA’s Space Launch System (SLS) rocket to a distant lunar orbit. Lessons learned from <a href="http://www.nasa.gov/content/nasa-s-orion-flight-test-yields-critical-data-as-engineers-improve-spacecraft-for-next">last year’s flight test</a> and building the initial spacecraft have provided valuable insight to inform these design improvements.<a name="more"></a></div><div style="text-align: justify;"><br /></div><div style="text-align: justify;">Orion includes <a href="http://www.nasa.gov/exploration/systems/sls/multimedia/gallery/sls_config_70t.html">three massive fairing ...
tag:blogger.com,1999:blog-6762481015010870446.post-7924452355185950876: Scientists Unlock Secrets of Stars Through Aluminium
Astro Watch

Direct link Scientists Unlock Secrets of Stars Through Aluminium

30 Jul 2015, 19:01 UTC <div class="separator" style="clear: both; text-align: center;"><a href="http://2.bp.blogspot.com/-U5bXqOL02DU/Vbpz9I94FuI/AAAAAAAAwXw/mc9Ug8F8qb8/s1600/radioactive_decay_26-aluminium_orig.jpg" style="margin-left: 1em; margin-right: 1em;"><img alt="Radioactive decay of aluminium-26. Credit: ESA" border="0" height="324" src="http://2.bp.blogspot.com/-U5bXqOL02DU/Vbpz9I94FuI/AAAAAAAAwXw/mc9Ug8F8qb8/s640/radioactive_decay_26-aluminium_orig.jpg" title="Radioactive decay of aluminium-26. Credit: ESA" width="640" /></a></div><br /><span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><div style="text-align: justify;">Physicists at the University of York (UK) have revealed a new understanding of nucleosynthesis in stars, providing insight into the role massive stars play in the evolution of the Milky Way and the origins of the Solar System. Radioactive aluminium (aluminium-26, or Al26) is an element that emits gamma radiation through its decay enabling astronomers to image its location in our galaxy. Studying how Al26 is created in massive stars, scientists have distinguished between previously conflicting assumptions about its rate of production by nuclear fusion.<a name="more"></a></div><div style="text-align: justify;"><br /></div><div style="text-align: justify;">Measuring the fusion of helium and sodium at two separate particle accelerators in Canada and Denmark, the rate of production of Al26 was determined to within a factor of two. An improvement on previous experiments where there was disagreement of around a factor of 100 between measurements, this outcome removes dispute about the effect of sodium fusion on the rate of aluminium production.</div><div style="text-align: justify;"><br /></div><div style="text-align: justify;">Al26 is known for its relatively short ...

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