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Nearby Venus-like exoplanet might have oxygen atmosphere

The distant planet GJ 1132b intrigued astronomers when it was discovered last year. Located just 39 light-years from Earth and orbiting its red dwarf star every 1.6 days, new research shows that despite being baked to a temperature of around 232 °C, GJ 1132b might possess a thin, oxygen atmosphere — but no life due to its extreme heat.

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Britain’s pre-Stonehenge megaliths were aligned by astronomers

For the first time, astroarchaeologists have statistically proven that the earliest standing stone monuments of Britain — the great circles — were constructed specifically in line with the movements of the Sun and Moon, 5000 years ago. University of Adelaide researchers used innovative 2-D and 3-D technology to test the patterns of alignment in the standing stones.

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Supernova ejected from the pages of history

A new look at the debris from an exploded star in our galaxy has astronomers re-examining when the supernova actually happened. Recent observations of the supernova remnant called G11.2-0.3 with NASA’s Chandra X-ray Observatory have stripped away its connection to an event recorded by the Chinese in 386 CE.

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Fermi space telescope expands its search for dark matter

Dark matter, the mysterious substance that constitutes most of the material universe, remains as elusive as ever. Although experiments on the ground and in space have yet to find a trace of dark matter, six or more years of data from NASA’s Fermi Gamma-ray Space Telescope has broadened the mission’s dark matter hunt using some novel approaches.

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Astronomers use cosmic voids to study the universe

Researchers who are looking for new ways to probe the nature of gravity and dark energy in the universe have adopted a new strategy: looking at what’s not there. An international team of astronomers were able to achieve four times better precision in measurements of how the universe’s visible matter is clustered together by studying the empty spaces in between.

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Solar storm of 1967 nearly took US to brink of war

The solar storm of 23 May 1967 that jammed radar and radio communications at the height of the Cold War could have led to a disastrous military conflict if not for the U.S. Air Force’s budding efforts to monitor the Sun’s activity, a new study finds. The ensuing geomagnetic storm was so strong that the northern lights were visible as far south as New Mexico.