Astrophotographer Dora Miller sent in a photo of an auroral display over Alaska, taken April 20, 2014. Miller is based in Talkeetna, AK.
Credit: Dora Miller/www.AuroraDora.com
The northern lights dance in a breathtaking display of purples and green in these stunning images by a night sky photographer in Alaska.
Astrophotographer Dora Miller of Talkeetna, Alaska captured the dazzling aurora images on April 20 during a nighttime photo session that she won't forget anytime soon.
"A very intense and colorful show of northern lights happened last night here in Alaska," Miller wrote in an email to Space.com. "I have been shooting auroras for many years but last night was a mind-blower." [See more amazing northern lights photos of 2014]
Auroras are caused by charged particles from the sun (the solar wind) that interact with the Earth's upper atmosphere (at altitudes above 50 miles, or 80 km), causing a glow.
The particles are drawn to Earth's polar regions by the planet's magnetic field resulting in aurora borealis, or northern lights, and its southern counterpart the aurora australis, or southern lights.
Editor's note: If you have an amazing night sky photo you'd like to share for a possible story or image gallery, please contact managing editor Tariq Malik at firstname.lastname@example.org.