Dennis Waring

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The Big Bang May Not Have Spawned The Universe After All

Our universe might actually be the result of the collapse of a four-dimensional star.<p>According to a new paper posted on Arxiv, the Big Bang may not have been what we think it is. In fact, there may have been no Big Bang at all--our universe may have come from an entirely different source.<p>The Big …

APOD: NGC 2170: Still Life with Reflecting Dust (2013 Jul 07) Image Credit & Copyright: Adam Block, Mt. Lemmon SkyCenter, U. Arizona http://apod.nasa.gov/apod/ap130707.html Explanation: In this beautiful celestial still life composed with a cosmic brush, dusty nebula NGC 2170 shines at the upper left. Reflecting the light of nearby hot stars, NGC 2170 is joined by other bluish reflection nebulae, a compact red emission region, and streamers of obscuring dust against a backdrop of stars. Like the common household items still life painters often choose for their subjects, the clouds of gas, dust, and hot stars pictured here are also commonly found in this setting - a massive, star-forming molecular cloud in the constellation of the Unicorn (Monoceros). The giant molecular cloud, Mon R2, is impressively close, estimated to be only 2,400 light-years or so away. At that distance, this canvas would be about 15 light-years across. http://www.caelumobservatory.com/ http://skycenter.arizona.edu/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=130707 #APOD

Astronomy Picture of the Day (APOD)

Takeaways tax will force sensible eating

This week we heard Kiwis clocked the $1.5 billion mark in takeaway consumption last year. This has risen 25 per cent over the past four years, and …

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APOD: Partial Solar Eclipse with Airplane (2013 May 13) Image Credit & Copyright: Phillip C. http://apod.nasa.gov/apod/ap130513.html Explanation: It was just eight minutes after sunrise, last week, and already there were four things in front of the Sun. The largest and most notable was Earth's Moon, obscuring a big chunk of the Sun's lower limb as it moved across the solar disk, as viewed from Fremantle, Australia. This was expected as the image was taken during a partial solar eclipse -- an eclipse that left sunlight streaming around all sides of the Moon from some locations. Next, a band of clouds divided the Sun horizontally while showing interesting internal structure vertically. The third intervening body might be considered to be the Earth's atmosphere, as it dimmed the Sun from its higher altitude brightness while density fluctuations caused the Sun's edges to appear to shimmer. Although closest to the photographer, the least expected solar occulter was an airplane. Quite possibly, passengers on both sides of that airplane were contemplating the unusual view only visible out the eastern-facing windows. Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=130513 Starship Asterisk* • On This Day in APOD http://asterisk.apod.com/view_retro.php?date=0513