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| Herschel gives glimpse of power | Herschel gives glimpse of power |
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| Europe's new Herschel space observatory has provided a demonstration of its capability with a first image of the iconic Whirlpool Galaxy. | Europe's new Herschel space observatory has provided a demonstration of its capability with a first image of the iconic Whirlpool Galaxy. |
| The billion-euro telescope opened its "eyes" to the cosmos last Sunday when a command was given to lift a protective hatch covering the instrument bay. | The billion-euro telescope opened its "eyes" to the cosmos last Sunday when a command was given to lift a protective hatch covering the instrument bay. |
| Herschel spied the galaxy, also known as M51, with its Photoconductor Array Camera and Spectrometer (PACS). | Herschel spied the galaxy, also known as M51, with its Photoconductor Array Camera and Spectrometer (PACS). |
| Scientists stress Herschel is still in its commissioning phase. | Scientists stress Herschel is still in its commissioning phase. |
| They need to learn how best to operate the facility. | They need to learn how best to operate the facility. |
| Nonetheless, the very first test observation suggests the optical performance of Herschel will more than meet the design expectations. | Nonetheless, the very first test observation suggests the optical performance of Herschel will more than meet the design expectations. |
| Scientists connected with the mission said they were "ecstatic" with the results. | Scientists connected with the mission said they were "ecstatic" with the results. |
| When, finally, the first image showed up on the screen it was truly amazing Dr Albrecht Poglitsch, Herschel scientist | When, finally, the first image showed up on the screen it was truly amazing Dr Albrecht Poglitsch, Herschel scientist |
| Albrecht Poglitsch, the lead scientist on PACS, told the BBC "nobody in their right mind would ever have predicted such a quality at the very first attempt". | Albrecht Poglitsch, the lead scientist on PACS, told the BBC "nobody in their right mind would ever have predicted such a quality at the very first attempt". |
| The European Space Agency (Esa) mission was launched from Earth on 14 May. | The European Space Agency (Esa) mission was launched from Earth on 14 May. |
| The observatory's quest is to study how stars and galaxies form, and how they evolve through cosmic time. | The observatory's quest is to study how stars and galaxies form, and how they evolve through cosmic time. |
| Herschel is sensitive to light at long wavelengths - in the far-infrared and sub-millimetre range. | Herschel is sensitive to light at long wavelengths - in the far-infrared and sub-millimetre range. |
| PACS covers the shorter end of the spectrum; the SPIRE (Spectral and Photometric Imaging Receiver) instrument looks at the longer end. | PACS covers the shorter end of the spectrum; the SPIRE (Spectral and Photometric Imaging Receiver) instrument looks at the longer end. |
| Whereas PACS got its opportunity to look out into the Universe immediately after the hatch opening on Sunday, SPIRE was not scheduled to make its first observation until Tuesday. | Whereas PACS got its opportunity to look out into the Universe immediately after the hatch opening on Sunday, SPIRE was not scheduled to make its first observation until Tuesday. |
| Herschel was launched on an Ariane 5 rocket in May The observatory is tuned to see the Universe in the far-infraredIts 3.5m diameter mirror is the largest ever flown in spaceHerschel can probe clouds of gas and dust to see stars being bornIt will investigate how galaxies have evolved through timeThe mission will end when its helium refrigerant boils off Telescope seeks cold cosmos | Herschel was launched on an Ariane 5 rocket in May The observatory is tuned to see the Universe in the far-infraredIts 3.5m diameter mirror is the largest ever flown in spaceHerschel can probe clouds of gas and dust to see stars being bornIt will investigate how galaxies have evolved through timeThe mission will end when its helium refrigerant boils off Telescope seeks cold cosmos |
| Its check-out targets were likely to include an object in our Solar System as well something far-distant. | Its check-out targets were likely to include an object in our Solar System as well something far-distant. |
| Dr Poglitsch described his feelings on getting the first imagery down from Herschel. | |
| "It certainly was a moment to remember," he told BBC News. | "It certainly was a moment to remember," he told BBC News. |
| "We were anxiously watching the progress bar on the computer. When, finally, the first image showed up on the screen it was truly amazing - nobody in their right mind would ever have predicted such a quality at the very first attempt. | "We were anxiously watching the progress bar on the computer. When, finally, the first image showed up on the screen it was truly amazing - nobody in their right mind would ever have predicted such a quality at the very first attempt. |
| "So, it was a mix of disbelief and exaltation, with the latter one gradually prevailing as all three 'colours' rolled in one after the other. | "So, it was a mix of disbelief and exaltation, with the latter one gradually prevailing as all three 'colours' rolled in one after the other. |
| "The nice colour picture, of course, took days of more advanced processing of the data in the three individual bands and then quite some optimisation at the colour image level to visualize the information it carries. | "The nice colour picture, of course, took days of more advanced processing of the data in the three individual bands and then quite some optimisation at the colour image level to visualize the information it carries. |
| "So, when we had reached that level - three days after the initial arrival of the data - everybody on the team was absolutely enthusiastic about what we had achieved. | "So, when we had reached that level - three days after the initial arrival of the data - everybody on the team was absolutely enthusiastic about what we had achieved. |
| "I would say that it was a once-in-a-lifetime experience." | "I would say that it was a once-in-a-lifetime experience." |
| Dr Poglitsch is affiliated to the Max-Planck-Institut für extraterrestrische Physik, Garching. | Dr Poglitsch is affiliated to the Max-Planck-Institut für extraterrestrische Physik, Garching. |
| Jonathan.Amos-INTERNET@bbc.co.uk | Jonathan.Amos-INTERNET@bbc.co.uk |