Astronomy Picture of the Day

ngc474_cfht_1769Galaxy NGC 474

They think the halos are caused by galactic collisions. Very cool. Read the whole explanation at the link.

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Astronomy Picture of the Day

noonalemma_tezel_960

This one is interesting. It’s a compilation of shots taken of the sun at midday throughout the year, showing how the location of the sun in the sky follows a figure-eight. This is known as an analemma.
Curious to see where some of our common symbols, like “infinity” come from, isn’t it?

Astronomy Pic of the Day

aurora2_salomonsen_658Since the shutdown effects NASA’s Astronomy picture website, I can’t pull a new image for this post. This is an older image I had saved in my “favorite pics” folder of the Aurora Borealis against a backdrop of stars. I still have dreams of making it to see the Northern Lights in person this year–2013 is a high year of solar activity before cycling back down.