04/05/2011

Space tourism craft reaches glide-test milestone (Update)

High over the Mojave Desert, the stubby-winged SpaceShipTwo bent itself into a near-right angle shape and plunged nearly straight downward for more than a minute before unfolding and gliding to a runway landing before an ...

Gravity Probe B confirms two Einstein theories

(PhysOrg.com) -- Stanford and NASA researchers have confirmed two predictions of Albert Einstein's general theory of relativity, concluding one of the space agency's longest-running projects.

US removes gray wolf from endangered list

The US government said Wednesday it is formally removing about 1,300 gray wolves in the Rocky Mountain region from the endangered species list, capping a legal battle that has dragged on for years.

Simulating amyloid formation

Many neurodegenerative diseases are characterized by proteins that assume an abnormal configuration, which leads to their aggregation and deposition in and around rve cells, causing cell death. This process, called amyloid ...

Japanese language traced to Korean Peninsula: study

Japan's many dialects originate in a migration of farmers from the Korean Peninsula some 2,200 years ago, a groundbreaking study borrowing the tools of evolutionary genetics reported Wednesday.

Nanomaterials: Finding friends with a golden tip

Quantum dots are tiny semiconductor crystals that emit bright and tunable fluorescence. They are typically made of cadmium sulfide (CdS) or cadmium selenide (CdSe), and have a wide range of applications, including bioimaging ...

Organic chemistry: Amino acids made easy

Amino acids are the building blocks of proteins. There are 22 different amino acids and they can combine in a myriad ways to form a vast array of proteins. All amino acids except glycine are chiral molecules, meaning they ...

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