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Two stars, three dimensions, and oodles of energy

19 September 2017 Astronomy Now

For decades, astronomers have known about irregular outbursts from the double star system V745 Sco, which is located about 25,000 light-years from Earth. Astronomers were caught by surprise when previous outbursts from this system were seen in 1937 and 1989. When the system erupted on February 6, 2014, however, scientists were ready to observe the event with a suite of telescopes including NASA’s Chandra X-ray Observatory.

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Study teams comb through NASA’s wish list for new telescope

21 July 2017 Stephen Clark

Scientists outlining four concepts for a powerful new space telescope that could launch in the 2030s this week said improvements in optics, detectors and access to huge new rockets like NASA’s Space Launch System could revolutionize the way astronomers observe potentially habitable planets, black holes, and the earliest galaxies in the Universe.

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Chandra peers into a nurturing cloud

14 July 2017 Astronomy Now

In the context of space, the term ‘cloud’ can mean something rather different from the fluffy white collections of water in the sky or a way to store data or process information. Giant molecular clouds are vast cosmic objects, composed primarily of hydrogen molecules and helium atoms, where new stars and planets are born. These clouds can contain more mass than a million Suns, and stretch across hundreds of light-years.

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Chandra samples galactic goulash

27 June 2017 Astronomy Now

What would happen if you took two galaxies and mixed them together over millions of years? A new image including data from NASA’s Chandra X-ray Observatory reveals the cosmic culinary outcome.

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NuSTAR’s first five years in space

16 June 2017 Astronomy Now

The chief scientist on NASA’s NuSTAR mission shares her take on five of the X-ray telescope’s iconic images and artist concepts, ranging from our flaring Sun to distant, buried black holes.