Cosmos: A Spacetime Odyssey + Colors.
Hubble’s Advanced Camera for Surveys shows individual stars, clusters of stars and nebulae in the spiral galaxy NGC 300, located approximately 7 million light-years away from Earth. The image shows a star-forming region a few thousand light-years farther from the galaxy’s centre. The yellow nebulosities are the glow from hot gas that has been heated by radiation from the nearest young, blue stars. The image at far right reveals more diffuse groupings of young, blue stars, farther away from the galaxy’s centre, along with faint shells of hot gas.
Credit: NASA, ESA, J. Dalcanton and B. Williams (University of Washington)
Since the insects and arachnids are out in the warm weather, I’ve been breaking out the macro lens and going on bugventures in the garden!
I really love skippers and I think they’re the most adorable butterflies. These ones are woodland skippers. (Ochlodes sylvanoides)
Also here are a harvestman, bumblebee, leafhopper, and a teeny dipteran friend.
Arp 302 consists of a pair of very gas-rich spiral galaxies in their early stages of interaction: VV 340A is seen edge-on to the left, and VV 340B face-on to the right. An enormous amount of infrared light is radiated by the gas from massive stars that are forming at a rate similar to the most vigorous giant star-forming regions in our own Milky Way. UGC 9618 is 450 million light-years away from Earth, and is the 302nd galaxy in Arp’s Atlas of Peculiar Galaxies.
This image is part of a large collection of 59 images of merging galaxies taken by the Hubble Space Telescope and released on the occasion of its 18th anniversary on 24th April 2008.
Credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA)-ESA/Hubble Collaboration and A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook University)
Huge Congregation of River Frogs Documented in Georgia
by Dirk Stevenson
When the accomplished Albert Hazen Wright (1879-1970), Cornell University Professor and Herpetologist, first encountered the strange tadpoles of the River Frog (Lithobates heckscheri), he knew instantly he was looking at a new species. Wright, who described the new frog in 1924, wrote of the species’ habitat”…swampy edges of rivers and streams, a truly fluviatile species” and mentioned that the polliwogs “travel in big schools as no other big tadpoles do.”
John Jensen, herpetologist with the Georgia Department of Natural Resources, and Jim Wright (no relation to Albert) just published a fascinating paper in the current issue of Herpetological Review about the River Frog. Last May, along the shores of a tributary to Muckalee Creek, Jim snapped incredible photos of a mass metamorphosis event of River Frogs—an estimated 4,000 tadpoles transformed and became froglets, congregating on nearby sand-and-mud-bars.
An adult female River Frog can lay 5,000 to 14,000 eggs in a floating surface film. The tadpoles require one to two years to develop and sometimes reach phenomenal sizes (ca. 5 inches) prior to metamorphosis…
(read more: Orianne Society)
Photos by Jim Wright and Dirk Stevenson
I love frogs.
The USGS has just released a gorgeous new geologic map of Mars, combining data from four separate spacecraft to paint a rainbow-like spectrum of terrain and texture upon the red planet.
See those four bulges on the left side of the spherical projection? Each of those four mountains, Olympus Mons, Ascraeus Mons, Arsia Mons, and Pavonis Mons, are taller than any mountain on Earth, including Mauna Kea (which rises more than six miles from the ocean floor).
Nature; No Photoshop required.
1. Lenticular Clouds
2. Anvil Clouds
3. Cirrus Kelvin-Helmholtz Clouds
4. Fallstreak Hole
5. Mammatus Clouds
6. Polar Stratospheric Cloud
7. Roll Cloud
8. Undulatus Asperatus
9. Mammatus Clouds
10. Undulatus Asperatus
I fucking love clouds