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Latest Guide star Stories

Adaptive Optics Details New Space Images From Gemini Observatory
2013-07-03 11:05:47

Brett Smith for redOrbit.com - Your Universe Online Scientists at the Gemini Observatory in Chile have just released the first new images of space created with their state-of-the-art adaptive optics system, called GeMS. An acronym for Gemini Multi-conjugate adaptive optics System, GeMS allows scientists at the observatory to capture deep-space images without the usual distortions created by Earth's atmosphere. "What we have seen so far signals an incredible capability that leaps...

Time exposure of SOAR telescope observing at Cerro Pachon in Chile
2013-05-02 04:41:36

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online One challenge of ground-based optical astronomy is that photons in this regime, and nearby infrared and ultraviolet bands, get refracted in our atmosphere. The consequence is that imaging of astronomical objects can be blurred, making it difficult to identify and characterize individual objects. Compensating for these effects can be tricky though, as our atmosphere is not a static system. Rather, it is in a state of...

Gemini Observatory Has New Instrument To Study Universe With Such Clarity, Detail
2013-01-10 12:45:37

redOrbit Staff & Wire Reports - Your Universe Online Researchers at the Gemini Observatory in Chile are touting a new instrument that they claim will allow astronomers to “study the universe with an unprecedented level of clarity and detail.” The system is called GeMS, and it is an advanced adaptive optics system that has been installed on the Gemini South telescope. According to a statement released by representatives of the facility on Wednesday, it is the first...

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2007-06-13 09:40:00

Laser Guide Star System on ESO's VLT Starts Regular Science Operations An artificial, laser-fed star now shines regularly over the sky of Paranal, home of ESO's Very Large Telescope, one of the world's most advanced large ground-based telescopes. This system provides assistance for the adaptive optics instruments on the VLT and so allows astronomers to obtain images free from the blurring effect of the atmosphere, regardless of the brightness and the location on the sky of the observed...

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2006-02-24 09:07:13

First Light for the VLT Laser Guide Star Facility ESO -- Scientists celebrate another major milestone at Cerro Paranal in Chile, home of ESO's Very Large Telescope array. Thanks to their dedicated efforts, they were able to create the first artificial star in the Southern Hemisphere, allowing astronomers to study the Universe in the finest detail. This artificial laser guide star makes it possible to apply adaptive optics systems, that counteract the blurring effect of the atmosphere, almost...


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7_6780e401a19a2a410cc76091e7c2309a5
2004-10-19 04:45:43

Adaptive Optics -- Adaptive optics is a technology to improve the performance of Earth-based telescopes, reversing the effect of atmospheric distortions. When light from a star or another astronomical object enters the Earth's atmosphere, the different temperature layers and different wind speeds distort and move the image in various ways (see seeing for a proper discussion). The net result is that an 8 meters or 10 meters telescope (like the VLT or Keck), while theoretically capable...

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Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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