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Posted by TheCriticOfTheWord - 14 hours ago
Astrophysicists from Caltech and MIT reported the discovery of the first triple star system with a black hole, located in the V404 Cygni system. It consists of a black hole "feeding" on a nearby companion star and a third star in a distant orbit with a period of approximately
The discovery was made possible thanks to data from the Gaia mission, which confirm that the third star is gravitationally bound to the system.
Posted by TheCriticOfTheWord - 11 days ago
For the first time, astronomers have captured a detailed image of the star WOH G64, located in the Large Magellanic Cloud, about 160,000 light-years away. It is shown in the image on the left; the one on the right is an artist's impression.
This red supergiant is surrounded by a cocoon of gas and dust formed by intense ejections during the final stages of the star's life. The structure appears elongated, possibly due to uneven outflows or the presence of a hidden stellar companion.
As the star dims, even modern instruments struggle to capture data. Continued observations will be crucial to understanding what is really happening to the star.
Posted by TheCriticOfTheWord - 2 weeks ago
We’re here to sweep you away … with an intricate Hubble view of a star-forming region near the Tarantula Nebula. Stars form when clumps of gas become dense enough. The clumps are typically shrouded in dust, which appears dark brown here.
Credit: NASA, ESA.
Posted by TheCriticOfTheWord - 1 month ago
These galaxies are about 80 million light-years from Earth. Their diameters are approximately 90,000 and 60,000 light-years, respectively.
IC 2163 and NGC 2207 collided a few million years ago. They are currently exhibiting intense star formation activity, producing about 20 solar-mass stars per year; by comparison, the Milky Way forms only 2–3.
In the future, the galaxies may pass close to each other several more times before merging into a single system with reshaped spiral arms and a brighter center.
Posted by TheCriticOfTheWord - May 16th, 2025
The Ring Nebula (M57), located about 2,300 light-years away in the Lyra constellation, formed from the outer layers of a dying star ejected into space.
In 1915, early telescopes revealed a faint, almost ghostly ring. Modern images, however, show intricate details and brilliant colors, revealing a complex structure with elements like hydrogen, oxygen, and nitrogen.
Although the nebula appears flat, its true three-dimensional shape is more like a doughnut, with a shell of ionized gas creating its glowing core. ✨
Posted by TheCriticOfTheWord - May 12th, 2025
In photos taken from Earth's orbit or the Moon, stars are not visible due to camera settings. Stars emit a dim light compared to sunlit objects. Cameras are set to short exposure times and low sensitivity to avoid overexposing the Earth, the Moon, or other bright objects. With such settings, it is simply impossible to capture the faint light of stars.
If cameras were set up specifically to capture the starry sky, bright foreground objects would appear overexposed or blurry.
Posted by TheCriticOfTheWord - May 4th, 2025
Biggest Black Hole vs. Biggest Star 🫣
A size comparison: Black holes vastly outnumber even the largest stars.
Posted by TheCriticOfTheWord - April 28th, 2025
Cone Nebula
NGC 2264, located 2,500 light-years away in the constellation Unicorn, features a 2.5-light-year-long pillar of gas and dust. Radiation from young stars causes the hydrogen to glow red.
Is beautiful.
Posted by TheCriticOfTheWord - April 19th, 2025
As you know, the James Webb Telescope has detected possible signs of life on the exoplanet K2-18b, identifying that the exoplanet K2-18b has the potential for life.
This is undoubtedly fascinating news, since if true, it proves that we are not alone in the universe. However, in my humble opinion, as a person who loves astronomy, I think there is simply non-intelligent life, or life sufficient to be able to identify our messages.
I just hope more news comes about this event, which could usher in a new era for humanity.
Posted by TheCriticOfTheWord - April 12th, 2025
FUN FACTS:
Supernova remnant Cassiopeia A by James Webb.
This remnant is a cloud of hot gas and dust from a star that exploded about 11,000 years ago. Cassiopeia A is located about 11,000 light-years away in the constellation Cassiopeia. Its diameter is about 10 light-years.
