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Science

Science

Earth's magnetic field may be more than 750 million years older than previously thought

The Earth's magnetic field is crucial to life on the planet. It keeps out harmful solar winds, which would strip away our atmosphere and surface water and bombard us with radiation if left unchecked. A new analysis of zircon minerals suggests that the field originated at least 4.2 billion years ago – a hop after the planet formed in the geological timeline, and much earlier than previously thought.Read More

Medical

Non-invasive spinal cord stimulation gets paralyzed legs moving voluntarily again

Five men with complete motor paralysis have regained the ability to move their legs voluntarily and produce step-like movements after being treated with a non-invasive form of spinal cord stimulation. The new treatment builds on prior work to generate voluntary movements in paralyzed people through electrical stimulation – in particular, two studies (one completed in 2011, the other in 2014) that involved surgically implanting an electrode array on the spinal cord. This time, however, the researchers found success without performing any invasive surgery.Read More

Space

New map reveals a third of the stars in the Milky Way have dramatically changed orbit

It's easy to think of stars as being fixed in place, because that's how we see them in the sky. But like Earth and the other planets, they have orbits. And it turns out those orbits can change dramatically. In creating a new map of the Milky Way as part of the Sloan Digital Sky Survey (SDSS), scientists recently discovered that around 30 percent of the stars in our galaxy have done exactly that – they've moved into a totally new orbit.Read More

Lockheed tests Orion fairing design changes

Lockheed Martin announced that it's completed tests of design changes for NASA's Orion spacecraft’s fairing separation system. Based on information from Orion's unmanned maiden flight on December 5 last year, the alterations are meant to improve performance while reducing weight.Read More

Science

Slaughterhouse waste could be made into yarn

Ever since the late 19th century, people have experimented with making textiles from natural-source-based gelatine, as a cheaper and less allergenic alternative to wool. Although the emergence of synthetic fibers largely put an end to that, a new technique may yet allow gel-based yarn to see the spotlight. The fiber is said to have an insulation quality similar to that of Merino wool, and the collagen used to produce it can be obtained from waste at animal-processing facilities.Read More

Medical

Harnessing the survival powers of cancer cells could wipe out heart disease

The same genes that allow many cancers to proliferate and thrive could in the future be repurposed as a force for good. A study at the San Diego State University (SDSU) Heart Institute has found that mouse hearts regenerate cells better, causing the mice to live longer, when their progenitor cells are modified to over-express a key gene in cancer production. The researchers believe this could lead to a new treatment for people with heart disease or who have suffered from other age-related cardiac problems.Read More

Medical

CERN develops miniature linear accelerator for medical use

The Large Hadron Collider (LHC) at CERN is where the miraculous meets the impractical. In addition to probing the secrets of the Universe at the subatomic level, it also has potential for a variety of medical applications. Unfortunately, with a circumference of 27 km (16.7 mi) the LHC is so unwieldy that it would be about as practical as using Big Ben for a wristwatch. In the hopes of creating something a bit more useful for the medical fraternity, CERN engineers have come up with a miniature linear accelerator (mini-Linac) that, at 2 m (6.5 ft) long, is small enough to be set up in hospitals for medical imaging and radiotherapy applications.Read More

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