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| Astronomy |
Galaxy cluster smashes distance record
The most distant galaxy cluster yet has been discovered by combining data from NASA's Chandra X-ray Observatory and optical and infrared telescopes. The cluster is located about 10.2 billion light years away, and is observed as it was when the Universe was only about a quarter of its present age.
Tracking icy objects, across the globe
On any given night, numerous icy bodies orbiting the sun far beyond the orbit of Pluto may happen to pass in front of a star (as seen from Earth). These events are called occultations, but because the icy moon-sized globes called Kuiper Belt Objects are so small, and their orbits not very accurately known, the vast majority of these events will go unobserved.
Dirty stars make good solar system hosts
Some stars are lonely behemoths, with no surrounding planets or asteroids, while others sport a skirt of attendant planetary bodies. New research published in The Astrophysical Journal Letters explains why the composition of the stars often indicates whether their light shines into deep space, or whether a small fraction shines onto orbiting planets.
First light for Boss: a new kind of search for dark energy
BOSS, the Baryon Oscillation Spectroscopic Survey, is the most ambitious attempt yet to map the expansion history of the Universe using the technique known as baryon acoustic oscillation (BAO). A part of the Sloan Digital Sky Survey III (SDSS-III), BOSS achieved "first light" on the night of September 14-15, when it acquired data with an upgraded spectrographic system across the entire focal plane of the Sloan Foundation 2.5-meter telescope at Apache Point Observatory in New Mexico.
Simulation suggests rocky exoplanet has bizarre atmosphere
So accustomed are we to the sunshine, rain, fog and snow of our home planet that we find it next to impossible to imagine a different atmosphere and other forms of precipitation.
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Invading black holes explain cosmic flashes
Black holes are invading stars, providing a radical explanation to bright flashes in the universe that are one of the biggest mysteries in astronomy today.
New NASA temperature maps provide 'whole new way of seeing the Moon'
NASA's Lunar Reconnaissance Orbiter (LRO), an unmanned mission to comprehensively map the entire moon, has returned its first data. One of the seven instruments aboard, the Diviner Lunar Radiometer Experiment, is making the first global survey of the temperature of the lunar surface while the spacecraft orbits some 31 miles above the moon.
Researchers make rare meteorite find using new camera network in australian desert
Researchers have discovered an unusual kind of meteorite in the Western Australian desert and have uncovered where in the Solar System it came from, in a very rare finding published in the journal Science.
Will Kepler find habitable moons?
Since the launch of the NASA Kepler Mission earlier this year, astronomers have been keenly awaiting the first detection of an Earth-like planet around another star. Now, in an echo of science fiction movies a team of scientists led by Dr David Kipping of University College London thinks that they may even find habitable 'exomoons' too. The new results will appear in a paper in Monthly Notices of the Royal Astronomical Society.
Magnetic fields play larger role in star formation than previously thought
The simple picture of star formation calls for giant clouds of gas and dust to collapse inward due to gravity, growing denser and hotter until igniting nuclear fusion. In reality, forces other than gravity also influence the birth of stars. New research shows that cosmic magnetic fields play a more important role in star formation than previously thought.
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| Quotes | Have you seen a tall, lanky dufus with a bird face and hair like the bride of Frankenstein?-Elaine, describing Kramer
Having major planets disappear is always a bad sign.- Jim Blinn
Great minds have purposes, others have wishes.- Washington Irving
Great spirits often meet violent opposition with mediocre minds - Albert Einstein
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