Autumn is coming. Avenue of trees “in Oregon” somewhere.
Image credit: Ian Sane.

Autumn is coming. Avenue of trees “in Oregon” somewhere.

Image credit: Ian Sane.

The Crystal Cave of Giants, about 1000 feet below the surface in the Naica Mine, Chihuahua, Mexico, where lead, zinc, and silver are mined. The host rock is limestone, and the crystals are selenite (gypsum). See figure at left for scale.
More information: http://www.crystalinks.com/mexicocrystals.html

The Crystal Cave of Giants, about 1000 feet below the surface in the Naica Mine, Chihuahua, Mexico, where lead, zinc, and silver are mined. The host rock is limestone, and the crystals are selenite (gypsum). See figure at left for scale.

More information: http://www.crystalinks.com/mexicocrystals.html

A massive star’s core collapsed into this beautiful supernova remnant, called Puppis A.
Image credit: X-ray: NASA/CXC/IAFE/G. Dubner et al., ESA/XMM-Newton; infrared: NASA/ESA/JPL-Caltech/GSFC/R. Arendt et al.

A massive star’s core collapsed into this beautiful supernova remnant, called Puppis A.

Image credit: X-ray: NASA/CXC/IAFE/G. Dubner et al., ESA/XMM-Newton; infrared: NASA/ESA/JPL-Caltech/GSFC/R. Arendt et al.

Painting of a cloister at dusk, by Brandon Soloff.

http://www.brandonsoloff.com/artworks/3%2B4

Painting of a cloister at dusk, by Brandon Soloff.

http://www.brandonsoloff.com/artworks/3%2B4

Canterbury Cathedral Cloister at dusk.
Photo by Lisa Knechtel.

http://fineartamerica.com/featured/canterbury-cathedral-cloister-at-dusk-lisa-knechtel.html

Canterbury Cathedral Cloister at dusk.

Photo by Lisa Knechtel.

http://fineartamerica.com/featured/canterbury-cathedral-cloister-at-dusk-lisa-knechtel.html

Astronomers have learned that our galaxy is part of a really big galaxy that most of us have never heard of. Here’s the story:


https://www.youtube.com/watch?v=rENyyRwxpHo#action=share?

Astronomers have learned that our galaxy is part of a really big galaxy that most of us have never heard of. Here’s the story:

https://www.youtube.com/watch?v=rENyyRwxpHo#action=share?

Temple in a cave, Kyaut Sae, Myanmar (Burma)
Photo by lintun79.


http://lintun79.deviantart.com/art/In-The-Cave-208215402

Temple in a cave, Kyaut Sae, Myanmar (Burma)

Photo by lintun79.

http://lintun79.deviantart.com/art/In-The-Cave-208215402

A “moonbow” (like a rainbow, but produced by raindrops and moonlight, rather than sunlight) over Papohaku Beach on the island of Molokai, Hawaii.
Image credit and copyright: Rogelio Bernal Andreo (Deep Sky Colors).

A “moonbow” (like a rainbow, but produced by raindrops and moonlight, rather than sunlight) over Papohaku Beach on the island of Molokai, Hawaii.

Image credit and copyright: Rogelio Bernal Andreo (Deep Sky Colors).

The cluster of blue stars (and one orange one) just left of center, M6, is also called the Butterfly Cluster, because some think its outline resembles a butterfly. Me, I don’t really see it.
Image credit and copyright: Marco Lorenzi.

The cluster of blue stars (and one orange one) just left of center, M6, is also called the Butterfly Cluster, because some think its outline resembles a butterfly. Me, I don’t really see it.

Image credit and copyright: Marco Lorenzi.

Uluru, or Ayers Rock, in Australia, which has always fascinated me. There is no way to judge scale in this photo, taken at sunset, but Uluru is 1,142 feet from base to top.
http://www.photoz.com.au/slides/Ayers%20Rock%20sunset.html

Uluru, or Ayers Rock, in Australia, which has always fascinated me. There is no way to judge scale in this photo, taken at sunset, but Uluru is 1,142 feet from base to top.

http://www.photoz.com.au/slides/Ayers%20Rock%20sunset.html

The beautiful Trifid (not to be confused with Triffid) Nebula, also known as Messier 20, trisected by lines of cosmic dust. At top right is much-less-impressive Messier 21.
Image credit and copyright: Lorand Fenyes.

The beautiful Trifid (not to be confused with Triffid) Nebula, also known as Messier 20, trisected by lines of cosmic dust. At top right is much-less-impressive Messier 21.

Image credit and copyright: Lorand Fenyes.

The Delaware River as seen from the walking bridge that connects Bulls Island State Park in New Jersey to Lumberville, Pennsylvania.
Image credit and copyright: Lew Fuller.

https://lewfuller.wordpress.com/category/photographs/photograph-nj/

The Delaware River as seen from the walking bridge that connects Bulls Island State Park in New Jersey to Lumberville, Pennsylvania.

Image credit and copyright: Lew Fuller.

https://lewfuller.wordpress.com/category/photographs/photograph-nj/

CBedroom


For astronomy fans. Custom orders available.

Silex Spring in Yellowstone National Park, Wyoming, is heated to steaming by the subterranean magma chamber called the Yellowstone Hotspot. The colors in the pool are caused by layers of bacteria that grow in the heated water. And of course that’s the Milky Way above it.
Image credit and copyright: Dave Lane

Silex Spring in Yellowstone National Park, Wyoming, is heated to steaming by the subterranean magma chamber called the Yellowstone Hotspot. The colors in the pool are caused by layers of bacteria that grow in the heated water. And of course that’s the Milky Way above it.

Image credit and copyright: Dave Lane