Tag: Black Holes

Tiny black holes left over from the Big Bang may be prime dark matter suspects

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When it comes to primordial black holes being dark matter suspects, their alibi may be falling apart. Tiny black holes, created seconds after the birth of the universe, may survive longer than expected, reigniting a suspicion that primordial black holes could account for dark matter, the universe’s most mysterious stuff. Dark matter currently represents one of the most pressing problems in physics. That is because, despite making up an estimated 85% of the matter in the cosmos, dark matter remains effectively invisible to our eyes because it doesn’t interact with…

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Supermassive black hole’s mysterious hiccups’ likely caused by neighboring black hole’s ‘punches’

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A hiccuping supermassive black hole has alerted astronomers to a whole new type of black hole behavior.  In 2020, a previously quiet black hole at the heart of a galaxy about 800 million light-years from Earth, and with a mass equivalent to 50 million suns, suddenly erupted, brightening the material around it by a factor of 1,000. A team of researchers thinks that these periodic eruptions are caused by a second, smaller black hole slamming into a disk of gas and dust, or “accretion disk,” surrounding the supermassive black hole, causing…

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This iPhone app can find the Milky Way’s monster black hole from anywhere

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A new iPhone app allows you to find the center of the Milky Way simply by using your smartphone — and it was made with ChatGPT. The free app, called Galactic Compass, was developed by Matthew Webb and released on the Apple App Store on Feb. 15. It’s designed to always point users in the direction of the Galactic Center, no matter Earth’s position in the cosmos. Webb’s inspiration for the app stems from years of teaching himself to always know where to look for the Galactic Center, which shifts…

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Heaviest pair of black holes ever seen weighs 28 billion times more than the sun

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Two supermassive black holes found in collision-created “fossil galaxies” are so massive that they refuse to collide and merge. The discovery could explain why, although supermassive black hole mergers are predicted theoretically, they have never been observed in progress.  The supermassive black hole system is located in elliptical galaxy B2 0402+379. Together, the two black holes have a joint mass that is 28 billion times larger than that of the sun, making this the most massive black hole binary ever seen. Not only that, but the binary components of this…

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Stellar Beads on a String

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Galaxy cluster SDSS J1531+3414 X-ray: NASA/CXC/SAO/O. Omoruyi et al.; Optical: NASA/ESA/STScI/G. Tremblay et al.; Radio: ASTRON/LOFAR; Image Processing: NASA/CXC/SAO/N. Wolk Astronomers have discovered one of the most powerful eruptions from a black hole ever recorded in the system known as SDSS J1531+3414 (SDSS J1531 for short). As explained in our press release, this mega-explosion billions of years ago may help explain the formation of a striking pattern of star clusters around two massive galaxies, resembling “beads on a string.” SDSS J1531 is a massive galaxy cluster containing hundreds of individual galaxies and huge reservoirs of hot gas and dark…

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Telescopes Show the Milky Way’s Black Hole is Ready for a Kick

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NASA/CXC/M.Weiss This artist’s illustration depicts the findings of a new study about the supermassive black hole at the center of our galaxy called Sagittarius A* (abbreviated as Sgr A*). As reported in our latest press release, this result found that Sgr A* is spinning so quickly that it is warping spacetime — that is, time and the three dimensions of space — so that it can look more like a football. These results were made with NASA’s Chandra X-ray Observatory and the NSF’s Karl G. Jansky Very Large Array (VLA). A team of researchers applied a new…

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What’s Made in a Thunderstorm and Faster Than Lightning? Gamma Rays!

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3 min read What’s Made in a Thunderstorm and Faster Than Lightning? Gamma Rays! A flash of lightning. A roll of thunder. These are normal stormy sights and sounds. But sometimes, up above the clouds, stranger things happen. Our Fermi Gamma-ray Space Telescope has spotted bursts of gamma rays – some of the highest-energy forms of light in the universe – coming from thunderstorms. Gamma rays are usually found coming from objects with crazy extreme physics like neutron stars and black holes. So why is Fermi seeing them come from thunderstorms? About a thousand times a…

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NASA Collaborating on European-led Gravitational Wave Observatory in Space

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4 min read NASA Collaborating on European-led Gravitational Wave Observatory in Space The LISA (Laser Interferometer Space Antenna) mission, led by ESA (European Space Agency) with NASA contributions, will detect gravitational waves in space using three spacecraft, separated by more than a million miles, flying in a triangular formation. Lasers fired between the satellites, shown in this artist’s concept, will measure how gravitational waves alter their relative distances. AEI/MM/Exozet The first space-based observatory designed to detect gravitational waves has passed a major review and will proceed to the construction of…

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Curious Kids: Why are some black holes bigger than others?

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This is an article from Curious Kids, a series aimed at children. The Conversation is asking kids to send in questions they’d like an expert to answer. All questions are welcome – serious, weird or wacky! This article was originally published at The Conversation. The publication contributed the article to Space.com’s Expert Voices: Op-Ed & Insights. Jaclyn Champagne, postdoctoral researcher, University of Arizona’s Steward Observatory.  Black holes are dense astronomical objects with gravity so strong that nothing, not even light, can escape.  Anything that crosses the boundary of a black hole’s gravitational influence, called the…

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Hubble Finds Weird Home of Farthest Fast Radio Burst

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5 min read Hubble Finds Weird Home of Farthest Fast Radio Burst A NASA Hubble Space Telescope image of the host galaxy of an exceptionally powerful fast radio burst, FRB 20220610A. Hubble’s sensitivity and sharpness reveals a compact group of multiple galaxies that may be in the process of merging. They existed when the universe was only 5 billion years old. FRB 20220610A was first detected on June 10, 2022, by the Australian Square Kilometer Array Pathfinder (ASKAP) radio telescope in Western Australia. The European Southern Observatory’s Very Large Telescope…

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