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Topic: Andromeda GalaxyWritten by Elizabeth Landau
The object, called Swift J0042.6+4112, is a possible pulsar, the dense remnant of a dead star that is highly magnetized and spinning, researchers say. This interpretation is based on its emission in high-energy X-rays, which NuSTAR is uniquely capable of measuring. The object’s spectrum is very similar to known pulsars in the Milky Way. ![]() NASA’s Nuclear Spectroscope Telescope Array, or NuSTAR, has identified a candidate pulsar in Andromeda — the nearest large galaxy to the Milky Way. This likely pulsar is brighter at high energies than the Andromeda galaxy’s entire black hole population. (NASA/JPL-Caltech/GSFC/JHU) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) observes Andromeda Galaxy in X-Ray VisionWritten by Whitney Clavin
The results will ultimately help researchers better understand the role of X-ray binaries in the evolution of our universe. According to astronomers, these energetic objects may play a critical role in heating the intergalactic bath of gas in which the very first galaxies formed. ![]() NASA’s Nuclear Spectroscope Telescope Array, or NuSTAR, has imaged a swath of the Andromeda galaxy — the nearest large galaxy to our own Milky Way galaxy. (NASA/JPL-Caltech/GSFC) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Hubble Space Telescope sees Halo of Gas surrounding Andromeda GalaxyWritten by Rob Gutro
The dark, nearly invisible halo stretches about a million light-years from its host galaxy, halfway to our own Milky Way galaxy. This finding promises to tell astronomers more about the evolution and structure of majestic giant spirals, one of the most common types of galaxies in the universe. ![]() The Andromeda galaxy, our nearest massive galactic neighbor, is about six times larger and 1,000 times more massive than previously measured. (NASA/STScI) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Hubble Space Telescope sees Star forming regions in Large Magellanic CloudNASA’s Goddard Space Flight Center
Vast clouds of gas within it slowly collapse to form new stars. In turn, these light up the gas clouds in a riot of colors, visible in this image from the NASA/ESA Hubble Space Telescope. «Read the rest of this article» Sections: Technology | No Comments
NASA’s Hubble Space Telescope and Keck Telescopes help Astronomers discover unexpected pattern in the Evolution of GalaxiesWritten by Francis Reddy
“Astronomers thought disk galaxies in the nearby universe had settled into their present form by about 8 billion years ago, with little additional development since,” said Susan Kassin, an astronomer at NASA’s Goddard Space Flight Center in Greenbelt, MD, and the study’s lead researcher. “The trend we’ve observed instead shows the opposite, that galaxies were steadily changing over this time period.” «Read the rest of this article» Sections: News | No Comments
NASA’s Hubble Telescope measurements give astronomers data to predict Milky Way Galaxy collision with Andromeda GalaxyWritten by Dr. Tony Phillips
The Milky Way is destined to get a major makeover during the encounter, which is predicted to happen four billion years from now. It is likely the sun will be flung into a new region of our galaxy, but our Earth and solar system are in no danger of being destroyed. ![]() The Milky Way and Andromeda are moving toward each other under the inexorable pull of gravity. Also shown is a smaller galaxy, Triangulum, which may be part of the smashup. (Credit: NASA; ESA; A. Feild and R. van der Marel, STScI) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Hubble Space Telescope Zooms in on Double Nucleus in Andromeda GalaxyWritten by Tod R. Lauer
This is the sharpest visible-light image ever made of the nucleus of an external galaxy. The event horizon, the closest region around the black hole where light can still escape, is too small to be seen, but it lies near the middle of a compact cluster of blue stars at the center of the image. «Read the rest of this article» Sections: Technology | No Comments
Fermi’s Latest Gamma-ray Census Highlights Cosmic MysteriesWritten by Francis Reddy
These relatively steady sources are in addition to the numerous transient events Fermi detects, such as gamma-ray bursts in the distant universe and flares from the sun. ![]() This all-sky image, constructed from two years of observations by NASA's Fermi Gamma-ray Space Telescope, shows how the sky appears at energies greater than 1 billion electron volts (1 GeV). Brighter colors indicate brighter gamma-ray sources. (Credit: NASA/DOE/Fermi LAT Collaboration) «Read the rest of this article» Sections: News | No Comments
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