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Old 04-22-2016, 10:47 AM   #92
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During its four years of operations (2009-2013), the Herschel space observatory scanned the sky at far-infrared and sub-millimetre wavelengths. Observations in this portion of the electromagnetic spectrum are sensitive to some of the coldest objects in the Universe, including cosmic dust, a minor but crucial component of the interstellar material from which stars are born.
http://sci.esa.int/herschel/57755-ne...alactic-plane/

Is this the youngest thread for Herschel?

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Old 04-22-2016, 11:16 AM   #93
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There's an older thread about the spacecraft's assembly.

Looking at Herschel, its mirror appears to reflect visible light well.



If scientists could have stuck a visible camera in it, Herschel would have been a wide-angle visible observatory with a larger mirror than Hubble. Or maybe Herschel could have observed the near-infrared like WFIRST. Two missions for the price of one! (albeit a more expensive one)

It's a shame Herschel's 3.5 meter mirror only got four years of life.
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Old 06-06-2016, 03:19 PM   #94
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Planck News.

http://www.esa.int/spaceinimages/Ima..._of_microwaves

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Fifty years ago, astronomers discovered a mystery. They called it Loop I. Today, we still have not fully resolved the mystery of how this giant celestial structure formed but we do now have the best image of it, thanks to ESA’s Planck satellite.
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Old 08-22-2016, 01:21 PM   #95
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Planck News:
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http://www.esa.int/spaceinimages/Ima..._Polaris_Flare

This image from ESA’s Planck satellite appears to show something quite ethereal and fantastical: a sprite-like figure emerging from scorching flames and walking towards the left of the frame, its silhouette a blaze of warm-hued colours.

This fiery illusion is actually a celestial feature named the Polaris Flare. This name is somewhat misleading; despite its moniker, the Polaris Flare is not a flare but a 10 light-year-wide bundle of dusty filaments in the constellation of Ursa Minor (The Little Bear), some 500 light-years away.

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Old 08-30-2016, 09:22 AM   #96
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http://www.esa.int/spaceinimages/Ima...ical_protostar

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At the centre of this image, captured by ESA’s Herschel space observatory, is a truly peculiar cosmic object: a star named IRAS 19312+1950.

Located over 12 000 light-years from us, this star has puzzled astronomers for many years because it shows conflicting signs of being both extremely old and extremely young.

Astronomers have spotted signs of emission usually associated with old, late-type stars: silicon oxide and hydroxyl masers – the microwave equivalent of a visible-light laser.

But they have also discovered characteristics mostly seen around early-type stars: a chemical-rich enveloping cloud usually seen around youthful stars and in regions of star formation.
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Old 08-31-2016, 03:33 PM   #97
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Planck's turn!

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31 August 2016
ESA's Planck satellite has revealed that the first stars in the Universe started forming later than previous observations of the Cosmic Microwave Background indicated. This new analysis also shows that these stars were the only sources needed to account for reionising atoms in the cosmos, having completed half of this process when the Universe had reached an age of 700 million years.
http://sci.esa.int/planck/58193-firs...ously-thought/
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Old 09-18-2017, 09:04 AM   #98
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Celebrating Herschel's legacy

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Title Celebrating Herschel's legacy
Released 18/09/2017 10:00 am
Copyright ESA/Herschel/NASA/JPL-Caltech; acknowledgement: R. Hurt (JPL-Caltech), CC BY-SA 3.0 IGO
Description
This delicate image showing the intricacies of interstellar bubbles and wisps reveals great turmoil in the W3/W4/W5 complex of molecular clouds and star-forming regions. It was taken by ESA’s Herschel Space Observatory, a trailblazing mission that observed the sky in far-infrared and submillimetre wavelengths between 2009 and 2013.
September has often been the month of memorable moments or milestones for Herschel.
When the satellite was still on Earth, it was in September 2005 that the assembled telescope passed its first tests.
http://www.esa.int/spaceinimages/Ima...schel_s_legacy

http://sci.esa.int/herschel/59493-ho...tar-formation/

http://sci.esa.int/herschel/59494-th...d-by-herschel/

Last edited by Notebook; 09-19-2017 at 03:53 PM.
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Old 11-13-2017, 05:23 PM   #99
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http://www.esa.int/Our_Activities/Sp...early_Universe

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13 November 2017
What seemed at first like a rare instance of a huge, ancient galaxy revealed itself to be an even rarer pair of extremely massive galaxies, seen on the brink of merging when the Universe was only a billion years old.
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Old 12-07-2017, 01:36 PM   #100
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http://sci.esa.int/herschel/59840-he...us-starbursts/

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07 December 2017
Astronomers have used ESA's Herschel Space Observatory to solve a decades-old mystery about the origin of powerful cool gas winds in the hot environs of quasars. The evidence linking these powerful winds to star formation in the quasar host galaxies may also help resolve the mystery of why the size of galaxies in the Universe appears to be capped.
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