Astronomy Picture of the Day · March 7, 2013

Thor's Helmet

The Astronomy Picture of the Day for March 7, 2013 is “Thor's Helmet,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Martin Rusterholz ( CXIELO Observatory )). The original explanation runs about 137 words.

From the explanation

“This helmet-shaped cosmic cloud with wing-like appendages is popularly called Thor’s Helmet. Heroically sized even for a Norse god , Thor’s Helmet is about 30 light-years across.”

— APOD editors, March 7, 2013

Read the full explanation on science.nasa.gov

At a glance

Date: March 7, 2013
Type: Image
Credit: Credit: Image Credit & Copyright: Martin Rusterholz ( CXIELO Observatory )
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 137 words

All of March 2013 → · 2013 by month → · Full archive since 1995 →

Topics in this entry

Nebulae

Topics are matched from words in the title and explanation.

On this day: March 7 in other years

On Amazon

Popular picks for space fans

As an Amazon Associate I earn from qualifying purchases.

Electronics Amazon Kindle Paperwhite Signature Edition 32GB Read astronomy and space-history books anywhere. View on Amazon → Electronics Bose QuietComfort Wireless Headphones Noise-cancelling headphones for documentaries and launch livestreams. View on Amazon →

Source

Astronomy Picture of the Day, March 7, 2013 — science.nasa.gov/image-article/apod-2013-march-7-thors-helmet

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.