Sinopsis
Science discussions about astronomical objects selected at random locations in the sky.
Episodios
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Object 139: Recoil
09/12/2024 Duración: 08minThe galaxy 3C 186 features a supermassive black hole with a mass several billions of times the mass of the Sun that has been ejected 36000 light years out of the galaxy's nucleus.
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Object 138: A Weird Example of a Weird Subclass of a Weird Class of Objects
25/11/2024 Duración: 08min4U 1850-087 is an ultracompact binary star system consisting of a whtie dwarf and a neutron star orbiting each other so closely that the neutron star can strip the outer layers off of the white dwarf.
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Object 137: The Bedtime Story of the Black Hole that was Too Large for its Galaxy
11/11/2024 Duración: 08minThe elliptical galaxy NGC 4291 contains a supermassive black hole that is unusually massive in comparison to the rest of the galaxy.
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Object 136: Barium
28/10/2024 Duración: 10minHD 11397 is one of very few Sun-like stars that might seem ordinary but actually contain abnormally large amounts of heavy elements, most notably barium, that they could not have formed themselves.
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Object 135: Feedback Time
14/10/2024 Duración: 09minNGC 3801 is one of the very few nearby galaxies where astronomers can see jets from an active galactic nucleus disrupting star formation in the galaxy in a process known as feedback.
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Object 134: Not Dead Yet
30/09/2024 Duración: 07minThe star at the center of the planetary nebula NGC 7094 is almost but not quite a white dwarf, making it a rather unusual object for astronomers to look at.
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Object 133: Strong Arm Tactics
16/09/2024 Duración: 09minOne of the spiral arms in the galaxy NGC 3110 is producing unusually huge amounts of new stars as well as unusually huge amounts of infrared emission.
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Object 132: I Need a 2002 Pop Culture Reference
02/09/2024 Duración: 11minThe radio source PMN J0134-0931 created a lot of excitement in 2002 when people discovered that it was a quasar gravitationally lensed by another galaxy in front of it, they were really excited.
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Object 131: Get To Know Your Ultrafaint Neighbors
19/08/2024 Duración: 09minHydrus I is a very small, ultrafaint dwarf galaxy orbiting the Milky Way that was accidentally (or, to use the technical term, serendipitously) found by the Dark Energy Survey.
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Object 130: Putting It All Together
05/08/2024 Duración: 07minNGC 4261 was made famous when Hubble Space Telescope observations in the 1990s showed that this elliptical galaxy contains a supermassive black hole.
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Object 129: Rinky-Dink
22/07/2024 Duración: 09minThe very small Pyxis Cluster orbits the Milky Way in such an extremely extended orbit that it travels further away than many of the dwarf galaxies orbiting our galaxy.
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Object 128: The Dwarf Living Inside the Bridge
08/07/2024 Duración: 06minThe NGC 6221/NGC 6215 Group of galaxies contains a bridge-like structure of hydrogen gas connecting the two spiral galaxies within the group as well as a dwarf galaxy that looks like it formed within the bridge.
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Object 127: The Nebraska Blue Straggler Special
24/06/2024 Duración: 12minThe open cluster NGC 188 is peculiar not only because it is very old for an open cluster but also because it contains an unusual number of blue stars for a cluster of its age.
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Object 126: Do Not Mention Exoplanet b Again
10/06/2024 Duración: 10minHD 181433 has three exoplanets, two of which are gas giants with very unusually elongated orbits that have been very challenging to properly measure.
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Object 125: The Business Form Variable Star System
27/05/2024 Duración: 07minHR 1099 (also known as V711 Tauri) was instrumental in showing that magnetic fields play a major role in causing the variability of stars within the RS CVn class of variable star systems.
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Object 124: 6 > 2
13/05/2024 Duración: 11minMost people would associate Castor with Pollux, which are the two brightest stars in the constellation Gemini, but Castor by itself is very interesting because it is actually a very complex system containing six stars.
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Object 123: More Dampness
29/04/2024 Duración: 11minThe quasar QSO 1331+170 is best known for having a darker galaxy in front of it that is absorbing its light.
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Object 122: Wait For It...
15/04/2024 Duración: 12minThe cluster of galaxies MACS J1149.5+2223 is so massive that it has gravitationally bent (or lensed) the light from multiple things behind it, including one of the most distant galaxies in the universe and a supernova.
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Object 121: Can You Find the Supermassive Black Hole?
01/04/2024 Duración: 08minNGC 34 (also known as NGC 17) is a chaotic-looking galaxy that formed from two smaller galaxies merging together, and it is a place where astronomers have easily found lots of stars forming in a starburst but where they have had difficulty concluding whether the galaxy also contains a supermassive black hole.
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Object 120: A Possible Source of the Cosmic Rays that Gave the Fantastic Four Their Superpowers
18/03/2024 Duración: 11minThe Monogem Ring, which is one of the largest sources of X-rays in the Earth's sky, was created by a supernova explosion about 86000 years ago, and the core of the star that exploded has been identified as the pulsar PSR B0656+14 at the center of the ring.