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WHL0137-LS
WHL0137-LS, also known as Earendel, is a star in the constellation of Cetus. Discovered in 2022 by the Hubble Space Telescope, it is the earliest and most distant known star, at a comoving distance of . The previous furthest known star, MACS J1149 Lensed Star 1, also known as Icarus, at a comoving distance of , was discovered by Hubble in 2018. Stars like Earendel can be observed at cosmological distances thanks to the large magnification factors involved, that can exceed 1000. Other stars have been observed through this technique, such as Godzilla. Observation Earendel's discovery by the Hubble Space Telescope was reported on 30 March 2022. The star was detectable due to gravitational lensing caused by the presence of the galaxy cluster WHL0137-08 between it and the Earth, concentrating the light from the star. Computer simulations of the lensing effect suggest that Earendel's brightness was magnified between one thousand and forty thousand times. The dates of Hubble's expo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earendel (star)
WHL0137-LS, also known as Earendel, is a star in the constellation of Cetus. Discovered in 2022 by the Hubble Space Telescope, it is the earliest and most distant known star, at a comoving distance of . The previous furthest known star, MACS J1149 Lensed Star 1, also known as Icarus, at a comoving distance of , was discovered by Hubble in 2018. Stars like Earendel can be observed at cosmological distances thanks to the large magnification factors involved, that can exceed 1000. Other stars have been observed through this technique, such as Godzilla. Observation Earendel's discovery by the Hubble Space Telescope was reported on 30 March 2022. The star was detectable due to gravitational lensing caused by the presence of the galaxy cluster WHL0137-08 between it and the Earth, concentrating the light from the star. Computer simulations of the lensing effect suggest that Earendel's brightness was magnified between one thousand and forty thousand times. The dates of Hubble's expo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MACS J1149 Lensed Star 1
MACS J1149 Lensed Star 1, also known as Icarus,Other names include ''LS1'', ''MACS J1149 LS1'', ''MACS J1149 Lensed Star 1 (LS1)'' and ''MACS J1149+2223 Lensed Star 1'' is a blue supergiant star observed through a gravitational lens. It is the second most distant individual star to have been detected so far (second only to WHL0137-LS, a.k.a. Earendel, as of March 2022), at approximately 14 billion light-years from Earth (redshift z=1.49; comoving distance of 14.4 billion light-years; Cosmic time, lookback time of 9.34 billion years). Light from the star was emitted 4.4 billion years after the Big Bang. According to co-discoverer Patrick Kelly, the star is at least a hundred times more distant than the next-farthest non-supernova star observed, SDSS J1229+1122, and is the first magnified individual star seen. History In April and May 2018, the star was found in the course of studying the supernova SN Refsdal with the Hubble Space Telescope. Astronomer Patrick Kelly of the Univer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aurvandill
Aurvandill (Old Norse) is a figure in Germanic mythology. In Norse mythology, the god Thor tosses Aurvandill's toe – which had frozen while the thunder god was carrying him in a basket across the Élivágar rivers – into the sky to form a star called ' ('Aurvandill's toe'). In wider medieval Germanic-speaking cultures, he was known as ' in Old English, ' in Old High German, ' in Lombardic, and possibly as ' in Gothic. An Old Danish Latinized version, ''Horwendillus'' (Ørvendil), is also the name given to the father of ''Amlethus'' (Amleth) in Saxo Grammaticus' ''Gesta Danorum''. Comparative studies of the various myths where the figure is involved have led scholars to reconstruct a Common Germanic mythical figure named ', which seems to have personified the 'rising light' of the morning, possibly the Morning Star (Venus). However, the German and – to a lesser extent – the Old Danish evidence remain difficult to interpret in this model. Name and origin Etymology The Ol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eärendil And Elwing
Eärendil the Mariner (pronounced ) and his wife Elwing are characters in J. R. R. Tolkien's Middle-earth legendarium. They are depicted in ''The Silmarillion'' as Half-elven, the children of Men and Elves. He is a great seafarer who, on his brow, carried the morning star, a jewel called a Silmaril, across the sky. The jewel had been saved by Elwing from the destruction of the Havens of Sirion. The morning star and the Silmarils are elements of the symbolism of light, for divine creativity, continually splintered as history progresses. Tolkien took Eärendil's name from the Old English name Earendel, found in the poem '' Crist A'', which hailed him as "brightest of angels"; this was the beginning of Tolkien's Middle-earth mythology. Elwing is the granddaughter of Lúthien and Beren, and is descended from Melian the Maia. Through their progeny, Eärendil and Elwing became the ancestors of the Númenorean, and later Dúnedain, royal bloodline. Eärendil is the subject, too, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hubble Space Telescope
The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versatile, renowned both as a vital research tool and as a public relations boon for astronomy. The Hubble telescope is named after astronomer Edwin Hubble and is one of NASA's Great Observatories. The Space Telescope Science Institute (STScI) selects Hubble's targets and processes the resulting data, while the Goddard Space Flight Center (GSFC) controls the spacecraft. Hubble features a mirror, and its five main instruments observe in the ultraviolet, visible, and near-infrared regions of the electromagnetic spectrum. Hubble's orbit outside the distortion of Earth's atmosphere allows it to capture extremely high-resolution images with substantially lower background light than ground-based telescopes. It has recorded some of the most detaile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ABP Live
ABP News is an Indian Hindi-language free-to-air television news channel owned by ABP Group. The news channel was launched in 1998 originally as STAR News before being acquired by ABP Group. It won the Best Hindi News Channel award in the 21st edition of the Indian Television Academy Awards in 2022. The channel has been accused by protestors for being partial and supporting the ideology of the ruling government. History ABP News was launched as STAR News on 18 February 1998 by satellite television provider Star India (Disney Star) in partnership with the NDTV media company, with the latter producing the channel's programming. Initially, a bilingual channel broadcasting in both English and Hindi, its programming turned Hindi-only since 2003, when Star's deal with NDTV expired. In that same year, the Indian government introduced a guideline limiting foreign equity in the national news business to 26%. As Star India was a wholly-owned subsidiary of Hong Kong-based company Sate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ABP News
ABP News is an Indian Hindi-language free-to-air television news channel owned by ABP Group. The news channel was launched in 1998 originally as STAR News before being acquired by ABP Group. It won the Best Hindi News Channel award in the 21st edition of the Indian Television Academy Awards in 2022. The channel has been accused by protestors for being partial and supporting the ideology of the ruling government. History ABP News was launched as STAR News on 18 February 1998 by satellite television provider Star India (Disney Star) in partnership with the NDTV media company, with the latter producing the channel's programming. Initially, a bilingual channel broadcasting in both English and Hindi, its programming turned Hindi-only since 2003, when Star's deal with NDTV expired. In that same year, the Indian government introduced a guideline limiting foreign equity in the national news business to 26%. As Star India was a wholly-owned subsidiary of Hong Kong-based company Sate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stellar Spectra
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, ultraviolet, X-ray, infrared and radio waves that radiate from stars and other celestial objects. A stellar spectrum can reveal many properties of stars, such as their chemical composition, temperature, density, mass, distance and luminosity. Spectroscopy can show the velocity of motion towards or away from the observer by measuring the Doppler shift. Spectroscopy is also used to study the physical properties of many other types of celestial objects such as planets, nebulae, galaxies, and active galactic nuclei. Background Astronomical spectroscopy is used to measure three major bands of radiation in the electromagnetic spectrum: visible light, radio waves, and X-rays. While all spectroscopy looks at specific bands of the spectrum, different methods are required to acquire the signal depending on the frequency. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomy (magazine)
''Astronomy'' is a monthly American magazine about astronomy. Targeting amateur astronomers, it contains columns on sky viewing, reader-submitted astrophotographs, and articles on astronomy and astrophysics for general readers. History ''Astronomy'' is a magazine about the science and hobby of astronomy. Based near Milwaukee in Waukesha, Wisconsin, it is produced by Kalmbach Publishing. ''Astronomy''’s readers include those interested in astronomy and those who want to know about sky events, observing techniques, astrophotography, and amateur astronomy in general. ''Astronomy'' was founded in 1973 by Stephen A. Walther, a graduate of the University of Wisconsin–Stevens Point and amateur astronomer. The first issue, August 1973, consisted of 48 pages with five feature articles and information about what to see in the sky that month. Issues contained astrophotos and illustrations created by astronomical artists. Walther had worked part time as a planetarium lecturer at the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ScienceAlert
ScienceAlert is an independently run online publication and news source that publishes articles featuring scientific research, discoveries and outcomes. The site was founded in 2004 by Julian Cribb, a science writer, to aggregate research findings from Australian universities, and expanded in 2006 when ex-Microsoft programmer Chris Cassella took on the project of developing the website. It has readership that ranges from 11.5m to 26.5m per month. Science journalist Fiona MacDonald has been CEO since 2017. History Science communicator Julian Cribb founded ScienceAlert in 2004. The website was borne of his “concern at the lack of information available about what Australians and New Zealanders achieve in science.” Chris Cassella, a former programmer for Microsoft, joined the site in order to develop new webtools. He took on this work as part of a Master’s thesis in Science Communication at Australia National University, where Cribb was a professor. Initially, ScienceAlert’ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Der Standard
''Der Standard'' is an Austrian daily newspaper published in Vienna. History and profile ''Der Standard'' was founded by Oscar Bronner as a financial newspaper and published its first edition on 19 October 1988. German media company Axel Springer acquired a stake in the paper in 1988 and sold it in 1995. Bronner remains the paper's publisher, Martin Kotynek is editor-in-chief. ''Der Standard'' sees itself as—in a Continental European sense (socially and culturally, but not economically)—liberal and independent. Third parties have described the paper as having a left-liberal stance. Until 2007, the editor-in-chief of the daily was Gerfried Sperl, Alexandra Föderl-Schmid succeeded him in the post. In 2002 the paper was one of four quality daily newspapers with nationwide distribution along with ''Salzburger Nachrichten'', ''Die Presse'', and ''Wiener Zeitung''. Although ''Der Standard'' is intended to be a national paper, in the past it had an undeniable tendency to focus on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michelle Thaller
Dr. Michelle Lynn Thaller is an American astronomer and research scientist. Thaller is the assistant director for Science Communication at NASA's Goddard Space Flight Center. From 1998 to 2009 she was a staff scientist at the Infrared Processing and Analysis Center, and later Manager of the Education and Public Outreach program for the Spitzer Space Telescope, at the California Institute of Technology. She is a frequent on-camera contributor to programming on The History Channel and Science Channel. Background A native of Wisconsin, Thaller graduated from Waukesha South High School in 1988. She attended Harvard University, where she majored in astrophysics and worked on precision measurement of binary stars, receiving a bachelor's degree in 1992. At Georgia State University Thaller worked on colliding winds in close massive binary systems. She received a PhD in 1998. Thaller is a regular contributor to the online edition of the ''Christian Science Monitor'', for which she ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
