{"id":10745,"date":"2024-04-23T12:04:04","date_gmt":"2024-04-23T16:04:04","guid":{"rendered":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/explore-the-universe-with-the-first-e-book-from-nasas-fermi\/"},"modified":"2024-04-23T12:04:04","modified_gmt":"2024-04-23T16:04:04","slug":"explore-the-universe-with-the-first-e-book-from-nasas-fermi","status":"publish","type":"post","link":"https:\/\/zobi.alcowep.com\/bourtagshdrevxnls658739\/explore-the-universe-with-the-first-e-book-from-nasas-fermi\/","title":{"rendered":"Explore the Universe with the First E-Book from NASA\u2019s Fermi"},"content":{"rendered":"

Explore the Universe with the First E-Book from NASA\u2019s Fermi<\/h2>\n

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4 min read<\/p>\n

Explore the Universe with the First E-Book from NASA\u2019s Fermi<\/h1>\n<\/div>\n<\/div>\n<\/div>\n

To commemorate a milestone anniversary for NASA\u2019s Fermi spacecraft<\/a>, the mission team has published an e-book called \u201cOur High-Energy Universe: 15 Years with the Fermi Gamma-ray Space Telescope.\u201d<\/p>\n

Readers can download the e-book in PDF and EPUB formats. The e-book is aimed at general audiences with an interest in space.<\/p>\n

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Cover for the e-book \u201cOur High-Energy Universe: 15 Years with the Fermi Gamma-ray Space Telescope.\u201d<\/div>\n
NASA<\/div>\n<\/figcaption><\/div>\n<\/div>\n<\/div>\n
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\"Fermi<\/figure>\n<\/div>\n<\/div>\n
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PDF<\/h2>\n<\/div>\n
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Apr 22, 2024<\/p>\n<\/div>\n

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PDF (44.03 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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EPUB<\/h2>\n<\/div>\n
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Apr 22, 2024<\/p>\n<\/div>\n

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EPUB+ZIP (804.49 MB)<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Launched on June 11, 2008, Fermi detects gamma rays, the highest-energy form of light, from Earth\u2019s atmosphere to far-flung galaxies and cosmic phenomena in between. Its research has uncovered details on topics ranging from solar flares<\/a> to star formation<\/a> and the mysteries at the center of our Milky Way<\/a>.<\/p>\n

Through images, fun facts, and launch-day memories, the e-book tells Fermi\u2019s story from conceptualization to launch and recounts some of the mission\u2019s groundbreaking discoveries<\/a>. By delving into high-energy astrophysics topics like gamma-ray bursts<\/a> and blazars<\/a>, readers can explore Fermi\u2019s universe<\/a> and what questions remain open for investigation in its next chapter.<\/p>\n

Fermi was originally called the Gamma-ray Large Area Space Telescope but was renamed after Italian physicist Enrico Fermi in August 2008.<\/p>\n

\u201cEnrico Fermi\u2019s science has been important for understanding the sources that the Fermi telescope sees,\u201d said Elizabeth Hays, the mission\u2019s project scientist at NASA\u2019s Goddard Space Flight Center<\/a> in Greenbelt, Maryland. \u201cThe gamma-ray sky is powered by particle acceleration mechanisms he theorized about.\u201d<\/p>\n

The satellite has two gamma-ray detectors: the Large Area Telescope (LAT) and the Gamma-ray Burst Monitor (GBM).\u00a0<\/p>\n

The LAT observes a fifth of the gamma-ray sky at any time, detecting high-energy light with energies ranging from 20 million to over 300 billion electron volts. (The energy of visible light is 2 to 3 electron volts.) The GBM views about 70% of the sky at a time at lower energies, searching for brief flashes of gamma-ray light.<\/p>\n

The result of this carefully crafted duo is the most sensitive gamma-ray observatory in orbit, equipped to study the universe\u2019s highest-energy phenomena near and far.<\/p>\n

By peering through Fermi\u2019s gamma-ray eyes, we can better understand our solar system. Within its first eight years of operation, Fermi detected gamma-ray emissions from 40 solar flares \u2014 bursts of energy from the Sun. Some even originated on the Sun\u2019s far side, allowing scientists to analyze how charged particles fired by solar flares can arc from one side of the Sun to produce gamma rays on the other.<\/p>\n

In studying our Milky Way, Fermi found two lobes of high-energy gamma rays \u2014 called the Fermi Bubbles \u2014 extending above and below the galaxy\u2019s center. Each bubble stands 25,000 light-years tall. Astronomers think the bubbles formed following an ancient burst of activity from the Milky Way\u2019s central supermassive black hole.<\/p>\n

Fermi helps scientists understand black holes in other galaxies, too.<\/p>\n

\u201cAs a black hole forms, either from the death of a massive star or the collision of two neutron stars, it creates a brief flash of light called a gamma-ray burst,\u201d said Judith Racusin, Fermi\u2019s deputy project scientist at Goddard. \u201cFermi detects about one burst a day and has helped revolutionize our understanding of these phenomena.\u201d<\/p>\n

Even after 15 years of accomplishments, however, many mysteries remain for Fermi to tackle. One of the telescope\u2019s ongoing objectives is to study the composition of dark matter<\/a> \u2014 the mysterious substance that makes up about 25% of the universe.<\/p>\n

Because dark matter doesn\u2019t reflect, absorb, or emit light, scientists remain unsure of its composition. One popular theory suggests, though, that dark matter particles create gamma rays when they interact. If Fermi can spot this high-energy signature, it might help scientists learn more about dark matter\u2019s makeup.<\/p>\n

If there\u2019s one thing Fermi has taught us, it\u2019s to expect the unexpected. Gamma-ray research has yielded unprecedented breakthroughs in our understanding of the Milky Way\u2019s central black hole, our flaring Sun, and merging neutron stars. As much as we anticipate the next gamma-ray revelation, only time will tell what exactly Fermi has in store.<\/p>\n

Fermi is an astrophysics and particle physics partnership managed by Goddard. Fermi was developed in collaboration with the U.S. Department of Energy, with important contributions from academic institutions and partners in France, Germany, Italy, Japan, Sweden, and the United States.<\/p>\n

By Jenna Ahart<\/strong>
NASA\u2019s Goddard Space Flight Center<\/strong><\/a>, Greenbelt, Md.<\/strong><\/p>\n

Media Contact:<\/strong>
Claire Andreoli<\/strong>
301-286-1940<\/strong>
claire.andreoli@nasa.gov<\/strong><\/a>
NASA\u2019s Goddard Space Flight Center, Greenbelt, Md.<\/strong><\/p>\n

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