The frozen remains of a horse more than half a million years old have reluctantly given up their genetic secrets, providing scientists with the oldest DNA ever sequenced. The horse was discovered i…
Here’s a close up of the periodic table poster. Thought Cafe turned every element into a little character!
SEAHORSE HEADS ARE PERFECTLY SHAPED TO KILL
The seahorse may appear ungainly,
but seahorses are sophisticated copepod-killing machines.
They may be slow swimmers, but seahorses are amazingly fast when it comes to snatching prey. “A seahorse is one of the slowest swimming fish that we know of, but it’s able to capture prey that swim at incredible speeds for their size,” says Brad Gemmell, research associate at the University of Texas Marine Science Institute. (via Futurity)
IMAGE Credit: Theodore Scott/Flickr) and Brad Gemmell
GIF of seahorse and copepod via Smithsonian)
IF the lower image isn’t animated (thanks, Tumblr), you can see it here.
Reporting on “Morphology of seahorse head hydrodynamically aids in capture of evasive prey”
In Nature Communications 4, Article 2840 [doi:10.1038/ncomms3840]
“Mathematics, rightly viewed, possesses not only truth, but supreme beauty — a beauty cold and austere, without the gorgeous trappings of painting or music." | Betrand Russell
Spiral galaxy NGC 4921 seen from the Hubble Space Telescope.
Book of Kells
Credit: NASA/Hubble, Judy Schmidt
A 3D model of the Hubble Ultra Deep Field.
Mach 1000 shock wave lights supernova remnant
When a star explodes as a supernova, it shines brightly for a few weeks or months before fading away. Yet the material blasted outward from the explosion still glows hundreds or thousands of years later, forming a picturesque supernova remnant. What powers such long-lived brilliance?
In the case of Tycho’s supernova remnant, astronomers have discovered that a reverse shock wave racing inward at Mach 1000 (1000 times the speed of sound) is heating the remnant and causing it to emit X-ray light.