cool-critters:

Blue-winged kookaburra (Dacelo leachii)

The Blue-winged Kookaburra is a large species of kingfisher native to northern Australia and southern New Guinea. It is sexually dimorphic, with a blue tail in the male, and a rufous tail with blackish bars in the female. The Blue-winged Kookaburra hunts and eats a great variety of animals that live on or close to the ground. In the summer wet season, insects, lizards and frogs make up a higher proportion of their diet, while they eat arthropods such as crayfish, scorpions, spiders, fish, earthworms, small birds and rodents at other times. They have even been recorded waiting for and snatching insects flushed out by bushfires. The Blue-winged Kookaburra is a cooperative breeder, a group being made up of a breeding pair and one or more helper birds who help raise the young.

ancientdelirium:

tk146 by Tomasz Kołodziejczak on Flickr.

ancientdelirium:

tk146 by Tomasz Kołodziejczak on Flickr.

thedemon-hauntedworld:

Carina Nebula[source]

thedemon-hauntedworld:

Carina Nebula
[source]

space-pics:

Finally able to see my first launch in person!

space-pics:

Finally able to see my first launch in person!

h-artillery:

Ancient Artifacts from the Two Lands

miny-morty:

Plis don’t be disrespectful and don’t ask this kind of things Pt.1

sci-universe:

Triangulum, Andromeda, Pinwheel and M106 (with NGC 4217) galaxies captured by Francsics László.

Did anyone on here see this video?
Sam Pepper, a famous youtuber, uses womens bodies inappropriately to get his views and subscribers on his youtube channel.
Like, seriously? Are you that thirsty for attention and views?
I say it should definitely be banned from the site. Women deserve respect, and famous people make it look like it’s normal to do these things in public is just wrong. Social media has gotten way out of control. :/

(Source: youtube.com)

An Open Letter to Sam Pepper →

http://lacigreen.tumblr.com/post/98083811325/an-open-letter-to-sam-pepper

lacigreen:

Hi Sam!

Thanks for taking the time to read this letter. As fellow YouTubers, we have much respect for others who put so much hard work into building their channel. It’s not easy, and you should be proud! That said, we’ve noticed that in your success, there has been a lack of respect in…

earthstory:

Bone turquoise Also known as odontolite, this beautiful rock is formed in the depths of sedimentary stacks, as bones like this fossil jaw are preserved for the aeons during the process that turns their surrounding sediments into rock. Teeth are the most common part of the skeleton that turn into odontolite, hence its name. It was long thought to be coloured (like turquoise) by copper, and when analysis failed to reveal its presence, by the iron phosphate mineral vivianite (see http://tinyurl.com/mnvy6vx). Recent research has shown that it consists of crystals of blue apatite (see http://tinyurl.com/l5rzpag), coloured by trace impurities of manganese.In the old days it was called occidental turquoise to distinguish it from the oriental version which is a clay rock coloured by copper oxide, and occasionally the former has been erroneously (or fraudulently) sold as the latter. They can be told apart by their hardness, with the oriental version being harder. The most famous locality is in France, especially in the southwestern Languedoc region, where they accumulated in river sediments derived from the erosion of the nearby Pyrenean chain. They preserve bone structure beautifully and are much sought after by palaeontologists. The jaw in the photo (size 5.7 x 5.3 x 3.3 cm) is recent, and belonged to a Pleistocene rodent…LozImage credit: Rob Lavinsky/iRocks.comwww.gia.edu/…/Satellite?…%28Odontolite%29http://www.mindat.org/article.php/179/On+%22Odontolite%22+or+%22Bone+Turquoise%22http://www.mindat.org/min-32412.htmlA paper on how it forms, paywall access: http://www.sciencedirect.com/science/article/pii/S1293255800010670

earthstory:

Bone turquoise 

Also known as odontolite, this beautiful rock is formed in the depths of sedimentary stacks, as bones like this fossil jaw are preserved for the aeons during the process that turns their surrounding sediments into rock. Teeth are the most common part of the skeleton that turn into odontolite, hence its name. It was long thought to be coloured (like turquoise) by copper, and when analysis failed to reveal its presence, by the iron phosphate mineral vivianite (see http://tinyurl.com/mnvy6vx). Recent research has shown that it consists of crystals of blue apatite (see http://tinyurl.com/l5rzpag), coloured by trace impurities of manganese.

In the old days it was called occidental turquoise to distinguish it from the oriental version which is a clay rock coloured by copper oxide, and occasionally the former has been erroneously (or fraudulently) sold as the latter. They can be told apart by their hardness, with the oriental version being harder. The most famous locality is in France, especially in the southwestern Languedoc region, where they accumulated in river sediments derived from the erosion of the nearby Pyrenean chain. They preserve bone structure beautifully and are much sought after by palaeontologists. 

The jaw in the photo (size 5.7 x 5.3 x 3.3 cm) is recent, and belonged to a Pleistocene rodent…

Loz

Image credit: Rob Lavinsky/iRocks.com
www.gia.edu/…/Satellite?…%28Odontolite%29
http://www.mindat.org/article.php/179/On+%22Odontolite%22+or+%22Bone+Turquoise%22
http://www.mindat.org/min-32412.html

A paper on how it forms, paywall access: 
http://www.sciencedirect.com/science/article/pii/S1293255800010670

geometrymatters:

The geometry of diatoms, desmids and other algae.

http://www.micromagus.net/microscopes/pondlife_plants01.html

geometrymatters:

The geometry of diatoms, desmids and other algae.

http://www.micromagus.net/microscopes/pondlife_plants01.html

thedemon-hauntedworld:

Saturn’s Hexagon 
 Saturn’s hexagon is a persisting hexagonal cloud pattern around the north pole of Saturn, located at about 78°N. The sides of the hexagon are about 13,800 km (8,600 mi) long, which is longer than the Earth’s diameter. It rotates with a period of 10h 39m 24s, the same period as Saturn’s radio emissions from its interior. However, the hexagon does not shift in longitude like other clouds in the visible atmosphere.

Saturn’s south pole does not have a hexagon, according to Hubble observations. But it does have a vortex, and there is also a vortex inside the northern hexagon.

Saturn’s polar hexagon discovery was made by the Voyager mission in 1981–82, and it was revisited since 2006 by the Cassini mission. Cassini was only able to take thermal infrared images of the hexagon, until it started to become visible by light in January 2009. Cassini also recently was able to take a video of the hexagonal weather pattern, while traveling at the same speed as the planet, therefore recording only the movement of the hexagon. After its discovery, and after it came back into sunlight, amateur astronomers managed to get a blurry view of the hexagon from Earth.

Credit: NASA/Cassini

thedemon-hauntedworld:

Saturn’s Hexagon
Saturn’s hexagon is a persisting hexagonal cloud pattern around the north pole of Saturn, located at about 78°N. The sides of the hexagon are about 13,800 km (8,600 mi) long, which is longer than the Earth’s diameter. It rotates with a period of 10h 39m 24s, the same period as Saturn’s radio emissions from its interior. However, the hexagon does not shift in longitude like other clouds in the visible atmosphere.

Saturn’s south pole does not have a hexagon, according to Hubble observations. But it does have a vortex, and there is also a vortex inside the northern hexagon.

Saturn’s polar hexagon discovery was made by the Voyager mission in 1981–82, and it was revisited since 2006 by the Cassini mission. Cassini was only able to take thermal infrared images of the hexagon, until it started to become visible by light in January 2009. Cassini also recently was able to take a video of the hexagonal weather pattern, while traveling at the same speed as the planet, therefore recording only the movement of the hexagon. After its discovery, and after it came back into sunlight, amateur astronomers managed to get a blurry view of the hexagon from Earth.

Credit: NASA/Cassini

freersackler:

You have one more week to see Off the Beaten Path, featuring drawings, etchings, and watercolors that a young James McNeill Whistler made during a summer trip through the Rhineland. Explore the web feature, and see the exhibition in person before it closes next Sunday.

nemfrog:

Scarabaeus hercules. Guyana. 1833.

nemfrog:

Scarabaeus hercules. Guyana. 1833.