RefBan

Referral Banners

Wednesday, January 11, 2012

ScienceDaily: Top Science News

ScienceDaily: Top Science News

Astronomers pinpoint launch of 'bullets' in a black hole's jet

Posted: 10 Jan 2012 02:34 PM PST

Astronomers have identified the moment when a black hole in our galaxy launched super-fast knots of gas into space. Racing outward at about one-quarter the speed of light, these "bullets" of ionized gas are thought to arise from a region located just outside the black hole's event horizon, the point beyond which nothing can escape.

Before they were stars: New image shows space nursery

Posted: 10 Jan 2012 01:34 PM PST

The stars we see today weren't always as serene as they appear, floating alone in the dark of night. Most stars, likely including our sun, grew up in cosmic turmoil -- as illustrated in a new image from NASA's Spitzer Space Telescope. The image shows one of the most active and turbulent regions of star birth in our galaxy, a region called Cygnus X.

Quick-cooking nanomaterials in microwave to make tomorrow's air conditioners

Posted: 10 Jan 2012 11:04 AM PST

Engineering researchers have developed a new method for creating advanced nanomaterials that could lead to highly efficient refrigerators and cooling systems requiring no refrigerants and no moving parts. The key ingredients for this innovation are a dash of nanoscale sulfur and a normal, everyday microwave oven.

El Gordo: A 'fat' distant galaxy cluster

Posted: 10 Jan 2012 11:04 AM PST

An extremely hot, massive young galaxy cluster is the largest ever seen in the distant universe. The newly discovered galaxy cluster has been nicknamed El Gordo -- the "big" or "fat one" in Spanish. It consists of two separate galaxy subclusters colliding at several million kilometres per hour, and is so far away that its light has travelled for seven billion years to reach Earth.

Dramatic links found between climate change, elk, plants, and birds

Posted: 10 Jan 2012 11:02 AM PST

Climate change in the form of reduced snowfall in mountains is causing powerful and cascading shifts in mountainous plant and bird communities through the increased ability of elk to stay at high elevations over winter and consume plants, according to a groundbreaking study.

Molecular 'culprit' in rise of planetary oxygen

Posted: 10 Jan 2012 11:02 AM PST

A turning point in the history of life occurred two to three billion years ago with the unprecedented appearance and dramatic rise of molecular oxygen. Now researchers report they have identified an enzyme that was the first – or among the first – to generate molecular oxygen on Earth.

Farthest developing galaxy cluster ever found

Posted: 10 Jan 2012 08:43 AM PST

NASA's Hubble Space Telescope has uncovered a cluster of galaxies in the initial stages of construction — the most distant such grouping ever observed in the early universe. In a random sky survey made in near-infrared light, Hubble spied five tiny galaxies clustered together 13.1 billion light-years away. They are among the brightest galaxies at that epoch and very young, existing just 600 million years after the universe's birth in the big bang.

Comprehensive picture of the fate of oil from Deepwater Horizon spill

Posted: 10 Jan 2012 06:36 AM PST

A new study provides the composite picture of the environmental distribution of oil and gas from the 2010 Deepwater Horizon spill in the Gulf of Mexico. It amasses a vast collection of available atmospheric, surface and subsurface chemical data to assemble a "mass balance" of how much oil and gas was released, where it went and the chemical makeup of the compounds that remained in the air, on the surface, and in the deep water.
Posted by

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)