I can never get enough of watching the Milky Way like this:
by Randy Halverson
via Earth
Neil deGrasse Tyson presents a map where the sizes of the countries are determined not by geography, but by how much science is being done:
via reddit
From ESO:
Astronomers using ESO’s Very Large Telescope have discovered a gas cloud with several times the mass of the Earth accelerating towards the black hole at the centre of the Milky Way. This is the first time ever that the approach of such a doomed cloud to a supermassive black hole has been observed. This ESOcast explains the new results and includes spectacular simulations of how the cloud will break up over the next few years.
From NASA APOD:
The first hint of what will become of our Sun was discovered inadvertently in 1764. At that time, Charles Messier was compiling a list of diffuse objects not to be confused with comets. The 27th object on Messier’s list, now known as M27 or the Dumbbell Nebula, is a planetary nebula, the type of nebula our Sun will produce when nuclear fusion stops in its core. M27 is one of the brightest planetary nebulae on the sky, and can be seen toward the constellation of the Fox (Vulpecula) with binoculars. It takes light about 1000 years to reach us from M27, shown above in colors emitted by hydrogen and oxygen. Understanding the physics and significance of M27 was well beyond 18th century science. Even today, many things remain mysterious about bipolar planetary nebula like M27, including the physical mechanism that expels a low-mass star’s gaseous outer-envelope, leaving an X-ray hot white dwarf.
From NASA:
The bipolar star-forming region, called Sharpless 2-106, looks like a soaring, celestial snow angel. The outstretched “wings” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super-hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “wings” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “hourglass” shape.
This was an ad I didn’t mind watching.
From NASA APOD:
The cosmic brush of star formation composed this alluring mix of dust and dark nebulae. Cataloged as Sh2-239 and LDN 1551, the region lies near the southern end of the Taurus molecular cloud complex some 450 light-years distant. Stretching for nearly 3 light-years, the canvas abounds with signs of embedded young stellar objects driving dynamic outflows into the surrounding medium. Included near the center of the frame, a compact, tell-tale red jet of shocked hydrogen gas is near the position of infrared source IRS5, known to be a system of protostars surrounded by dust disks. Just below it are the broader, brighter wings of HH 102, one of the region’s many Herbig-Haro objects, nebulosities associated with newly born stars. Estimates indicate that the star forming LDN 1551 region contains a total amount of material equivalent to about 50 times the mass of the Sun.
These awe-inspiring time-lapse videos are previews of Tom Lowe’s upcoming astronomy film, TimeScapes:
Gorgeous. Just gorgeous.
It’s footage like this that makes me wish I didn’t live in the city.
via Gizmodo
This is amazing. It appears that the long lost fourteenth episode of Carl Sagan’s Cosmos has been recovered! In this episode, Carl Sagan takes us on a trip to the Meat Planet, a planet formed 15 billion years ago, when an early god exploded or something at 40,000 mph. An accretion disk of heavy meat, cosmic bone meal and blood-rich gravy slowly formed as the hot, spinning flesh particles were pulled together by gravity and “dark meat”, the invisible force which scientists believe holds meat together. The disk spun, collapsed and eventually cooled, forming into the spherical spectacle of nature that makes our stomachs rumble in wonder to this day:
So silly, and so wrong, yet so hilarious.
“Would it be enriched by adding spices? No one can say.”
Learn more about the Meat Planet
via MetaFilter