Image from U Penn.
I came across this really interesting press release from the University of Pennsylvania that I just had to share.
Despite having a close relationship with dogs for thousands of years, we are still making new discoveries about our canine friends. Drs. William Beltran (School of Veterinary Medicine), Artur Cideciyan (Perelman School of Medicine), and colleagues teamed up to study canine eyes in an effort to improve treatments for humans with retinal diseases.
Dr. Beltran was quoted as saying “It’s incredible that in 2014 we can still make an anatomical discovery in a…
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esiegel | August 30, 2012"I have announced this star as a comet, but since it is not accompanied by any nebulosity and, further, since its movement is so slow and rather uniform, it has occurred to me several times that it might be something better than a comet. But I have been careful not to advance this supposition to the public." -Giuseppe Piazzi, discoverer of Ceres, the first Asteroid
Out beyond Mars, but not quite out as far as Jupiter, a collection of thousands of rocky objects, ranging in size from pebbles all the way up to the size of Texas, lies the asteroid belt.
Image credit: David Minton and Renu…
esiegel | June 12, 2012"I went into a clothing store, and the lady asked me what size I was. I said, 'Actual'. I'm not to scale." -Demitri Martin
When you look out at the Universe, what you can see is limited, at the most fundamental level, by the size of what you look with. This is why you can see dimmer objects at night -- when your pupils are dilated -- than you can when your pupils are constricted.
Image credit: National Institute of Health.
This same principle that applies to your eyes applies to telescopes as well. As telescopes have grown in size, so has our ability to see deeper into the Universe, as we…
esiegel | June 8, 2012"Building one space station for everyone was and is insane: we should have built a dozen." -Larry Niven
Here on the solid ground of the Earth, the Sun and Moon rise and set on a daily basis. During the hours where the Sun is invisible, blocked by the solid Earth, the stars twirl overhead in the great canopy of the night sky.
Image credit: Chris Luckhardt at flickr.
In the northern hemisphere, they appear to rotate around the North Star, while in the southern hemisphere, the stars appear to rotate about the South Celestial Pole. The longer you observe -- or for photography, the longer you…
grrlscientist | July 20, 2010tags: Magnificent Frigatebird, Man O'War, Fregata magnificens, birds, mystery bird, bird ID quiz
[Mystery bird] Magnificent Frigatebird, sometimes known as the Man O'War, Fregata magnificens, photographed at Quintana Neotropical Bird Sanctuary, Brazoria County, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 15 July 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/1000s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
This bird is built for speed and agility in the air and is…
grrlscientist | July 19, 2010tags: Reddish Egret, Egretta rufescens, birds, mystery bird, bird ID quiz
[Mystery bird] Reddish Egret, Egretta rufescens, photographed at Quintana Neotropical Bird Sanctuary, Brazoria County, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 15 July 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/1250s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
This lovely species was nearly exterminated in the US by hunters who killed the birds for their plumes. The population is small…
grrlscientist | July 18, 2010tags: Black Kite, Milvus migrans, birds, mystery bird, bird ID quiz
[Mystery bird] Black Kite, Milvus migrans, photographed at Ngorongoro Crater, Tanzania, Africa. [I will identify this bird for you in 48 hours]
Image: Dan Logen, 23 January 2010 [larger view].
Nikon D2X, with 600 mm lens with 1.4 extender, ISO 320, 1/350 sec f/5.6.
Please name at least one field mark that supports your identification.
You've seen this African species before, but may not remember, but there are plenty of family members in North America that you are familiar with, so if you cannot identify this…
grrlscientist | July 17, 2010tags: Gray Wren-warbler, Zambia Wren-warbler, Western Wren-warbler, Calamonastes simplex, Lesser Striped Swallow, Striped Swallow, Hirundo abyssinica, birds, mystery bird, bird ID quiz
[Mystery bird]Gray Wren-warbler (perched), also known as a Zambia Wren-warbler or Western Wren-warbler, Calamonastes simplex, and a Lesser Striped Swallow (flying), also known as a Striped Swallow, Hirundo abyssinica, photographed near the Pangani River Camp, Tanzania, Africa. [I will identify this bird for you in 48 hours]
Image: Dan Logen, 14 January 2010 [larger view].
Nikon D300s, 600 mm VR lens. ISO…
grrlscientist | July 16, 2010tags: White Tern, Gygis alba, birds, mystery bird, bird ID quiz
[Mystery bird] The White Tern is known by more alternate names than a con-artist, also being known as the Angel Tern, Common White-tern, Common White Tern, Little White Tern, Little Fairy Tern, Fairy Tern, Little White-tern, Little Fairy-tern, and even (since it lives in tropical oceans of the world) as the Atlantic White Tern, Gygis alba (formerly; Gygis microrhyncha), photographed on Midway Atoll National Wildlife Refuge -- one of the most remote coral atolls on earth -- a US territory in the north Pacific Ocean [I will…
grrlscientist | July 15, 2010tags: Bicolored Blackbird, Agelaius phoeniceus gubernator, birds, mystery bird, bird ID quiz
[Mystery bird] Fledgling Bicolored Blackbird, Agelaius phoeniceus gubernator, photographed at Las Gallinas Wildlife Ponds, Marin County, California. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 13 May 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/500s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
This mystery bird is quite challenging to identify, but for those of you who can ID this…
grrlscientist | July 14, 2010tags: Red-throated Loon, Red-throated Diver, Gavia stellata, birds, mystery bird, bird ID quiz
[Mystery bird] Red-throated Loon, also known as the Red-throated Diver, Gavia stellata, photographed at Bodega Bay, California. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 12 May 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/1000s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
This bird has a character that sets it apart from the others in the same genus and family, and this…
grrlscientist | July 13, 2010tags: Least Bittern, North American Bittern, Ixobrychus exilis, birds, mystery bird, bird ID quiz
[Mystery bird] Least Bittern, Ixobrychus exilis, photographed at Anahuac National Wildlife Refuge, Anahuac, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 5 July 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/1250s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
Why are these bird's eyes placed in such a strange way on its head?
This bird's eyes are placed in a pointing down way…
grrlscientist | July 12, 2010tags: Swallow-tailed Kite, Fork-tailed Hawk, Swallow-tailed Hawk, Snake Hawk, Fish Hawk, Elanoides forficatus, birds, mystery bird, bird ID quiz
[Mystery bird] Swallow-tailed Kite, also known by a bunch of other common names, such as the Fork-tailed Hawk, Swallow-tailed Hawk, Snake Hawk and Fish Hawk, Elanoides forficatus, photographed at Double Bayou Park, Chambers County, Anahuac, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 26 June 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/400s f/8.0 at 1000.0mm iso400.
Please…
grrlscientist | July 11, 2010tags: Irania, White-throated Robin, Irania gutturalis, birds, mystery bird, bird ID quiz
[Mystery bird] Irania, also known as the White-throated Robin, Irania gutturalis, photographed at Nyumba ya Mungu Reservoir, Tanzania, Africa. [I will identify this bird for you in 48 hours]
Image: Dan Logen, 14 January 2010 [larger view].
Nikon D300, 600 mm VR lens. ISO 500 1/400 sec, f/6.3.
Please name at least one field mark that supports your identification.
Review all mystery birds to date.
grrlscientist | July 10, 2010tags: Green Barbet, Stactolaema olivacea, birds, mystery bird, bird ID quiz
[Mystery bird] Green Barbet, Stactolaema olivacea, photographed at Udzungwa Mountains National Park, Tanzania, Africa. [I will identify this bird for you in 48 hours]
Image: Dan Logen, 10 January 2010 [larger view].
Nikon D300, 200-400 VR lens at 400 mm., ISO 800, 1/640 sec, f/7.1.
Please name at least one field mark that supports your identification.
Review all mystery birds to date.
grrlscientist | July 9, 2010tags: White-winged Scoter, Melanitta deglandi, birds, mystery bird, bird ID quiz
[Mystery bird] White-winged Scoter, Melanitta deglandi, photographed at Bodega Bay, California. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 12 May 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/500s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
The White-winged Scoter, Melanitta deglandi, a large black duck of coastal waters which is the largest of all the scoters. This species breeds farther…
grrlscientist | July 6, 2010tags: Acorn Woodpecker, Melanerpes formicivorus, birds, mystery bird, bird ID quiz
[Mystery bird] Acorn Woodpecker, Melanerpes formicivorus, photographed in China Camp State Park, Point San Pedro Peninsula, California. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 11 May 2010 [larger view].
Nikon D200, Kowa 883 telescope TSN-PZ camera eyepiece 1/400s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
This bird has a very unusual behavior that is a response to the availability of its primary food supply. Can you tell…
grrlscientist | July 5, 2010tags: Black-throated Sparrow, Desert Sparrow, Amphispiza bilineata, birds, mystery bird, bird ID quiz
[Mystery bird] Black-throated Sparrow, also known (erroneously) as the Desert Sparrow, Amphispiza bilineata, photographed in Falcon State Park, Falcon Heights, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 5 April 2008 [larger view].
Nikon D200, Kowa 883 telescope TSN-PZ camera eyepiece 1/1000s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
This species has one character that sets it apart from all others…
grrlscientist | July 4, 2010tags: Zitting Cisticola, Streaked Fantail Warbler, Cisticola juncidis, birds, mystery bird, bird ID quiz
[Mystery bird] Zitting Cisticola, sometimes known as the Streaked Fantail Warbler,Cisticola juncidis, photographed at Serengeti National Park, Tanzania, Africa. [I will identify this bird for you in 48 hours]
Image: Dan Logen, 20 January 2010 [larger view].
Nikon D300, 600 mm VR lens with 1.4 extender ISO 400, f/8, 1/1000 sec.
Please name at least one field mark that supports your identification.
This African mystery bird has the largest range of any of its congeners and its range…
grrlscientist | July 3, 2010tags: Hooded Vulture, Necrosyrtes monachus, Marabou Stork, Leptoptilos crumeniferus, birds, mystery bird, bird ID quiz
[Mystery bird] Hooded Vulture, Necrosyrtes monachus (background: Marabou Stork, Leptoptilos crumeniferus), photographed at the Ndutu Safari Lodge, near Serengeti National Park, Tanzania, Africa. [I will identify this bird for you in 48 hours]
Image: Dan Logen, 21 January 2010 [larger view].
Nikon D300, 600 mm lens with 1.4 extender ISO 800, f/5.6 1/400.
Please name at least one field mark that supports your identification.
Since this African mystery bird is easy to…