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Astronomy

Space

All systems go for construction of world's largest optical telescope

The construction of the largest optical telescope ever built has moved one step closer today, with US$500 million in funding now committed from 11 international partners. Set to be the world's biggest and most powerful, the Giant Magellan Telescope is constructed from seven huge mirrors that will span a total of 25.4 meters, bringing in six times more light than any other large telescope. It is also claimed that the instrument will be able to resolve images up to ten times more clearly than the space-based Hubble telescope.Read More

Physics

University student maps plasma tubes in the sky

Using the Murchison Widefield Array (MWA) radio telescope in the Western Australia desert, a Sydney University student, Cleo Loi, has discovered enormous plasma pipes in the Earth’s upper atmosphere. Thought to be responsible for possible radio interference with satellite navigation systems, the presence of these objects has been predicted for over 60 years, but never before seen. By imaginatively using the radio telescope to observe in 3D, Loi was able to image large areas of the sky using the fast photography capabilities of the MWA to produce a movie that shows the motions of the plasma in real-time.Read More

Space

WISE discovers brightest galaxy in the universe

A fresh study examining data from NASA's Wide-field Infrared Survey Explorer (WISE) spacecraft has led to to the discovery of the brightest galaxy in the universe. The galaxy, dubbed WISE J224607.57-052635.0, is believed to contain in excess of 300 trillion stars, and has given rise to a new group of astronomical objects – Extremely Luminous Infrared Galaxies, or ELIRGs.Read More

Space

Scientists forecast weather on planets outside our solar system

Great news if you're planning a visit to exoplanets Kepler-7b or HAT-P-7b. An international team of astrophysicists has identified daily weather cycles using Kepler telescope data on these and four other far off worlds. The nightly news isn't about to start reading extrasolar weather reports, but this new knowledge will help improve our understanding of the Earth's place in the cosmic puzzle.Read More

Space

Earth-sized virtual telescope to study supermassive black hole at center of Milky Way

In astronomy, much like many other other aspects of life, bigger is better. Taking this adage to heart, astronomers at the University of Arizona are helping to build a virtual radio telescope the size of the Earth itself. With a resolution factor more than a thousand times greater than that of the Hubble Space Telescope, the new Event Horizon Telescope (EHT) will be used to study in fine detail the supermassive black hole at the center of our Milky Way. Read More

Space

Astronomers discover supernova subset which could allow for more acurate galactic measurements

NASA astronomers may have found a way to take more precise measurements of the distances between galaxies. Currently, astronomers use a certain type of supernova, known as a Type la supernova, to gauge the distances between galaxies and from this, the rate at which the universe is expanding. The reason that this particular breed of supernova is singled out for this purpose, is that when they explode, they give out a very similar amount of light.Read More

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