Wednesday 11 July 2018

Bradford Smith, 86, Dies; Showed Postcards From Outer Space

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As head of the camera team for the Voyager mission, Dr. Smith was humanity’s tour guide to the solar system.
via New York Times

Centenary of cosmological constant lambda

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Physicists are now celebrating the 100th anniversary of the cosmological constant. On this occasion, two recent articles highlight its role in modern physics and cosmology. Before becoming widely accepted, the cosmological constant had to undergo many discussions about its necessity, its value and its physical essence. Today, there are still unresolved problems in understanding the deep physical nature of the phenomena associated with the cosmological constant.
via Science Daily
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Colorful celestial landscape

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New observations show the star cluster RCW 38 in all its glory. This image was taken during testing of the HAWK-I camera with the GRAAL adaptive optics system. It shows RCW 38 and its surrounding clouds of brightly glowing gas in exquisite detail, with dark tendrils of dust threading through the bright core of this young gathering of stars.
via Science Daily
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NASA's Webb Space Telescope to Inspect Atmospheres of Gas Giant Exoplanets


Thousands of exoplanets are known to orbit distant stars. Far fewer have had their atmospheres studied. The Webb telescope will bring new capabilities for determining atmospheric compositions, temperatures, and structures. Some of Webb’s earliest observations will focus on gas giants, whose puffy atmospheres should be easier to inspect. Lessons learned there will apply to later observations of small, rocky worlds.


via Hubble - News feed
http://hubblesite.org/news_release/news/2018-30

CERN supports new business incubation centre in Switzerland