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A supernova explosion in the galaxy NGC 2442 This distant explosion occurred approximately 60 million years ago, around the time the dinosaurs on Earth were going extinct. The dying star's luminosity was billions of times greater than that of our Sun and comparable to the entire center of the... show more

Black Hole

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62,116 просмотров • 2 месяцев назад •via X (Twitter)

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Supernova in the galaxy NGC 2525 A supernova explosion was recorded in the spiral galaxy NGC 2525 in early 2018. More precisely, the explosion occurred about 70 million years ago, when dinosaurs were still roaming the Earth, but its light only reached us in 2018. At its peak, this supernova was 5 billion times brighter than the Sun! However, as usually happens, after a few months its light began to fade, and now it is no longer visible. Immediately after the explosion was detected, the Hubble telescope began regularly photographing the galaxy NGC 2525. The presented timelapse covers a whole year of observations, demonstrating how the supernova gradually faded in brightness.

Supernova in the galaxy NGC 2525 A supernova explosion was recorded in the spiral galaxy NGC 2525 in early 2018. More precisely, the explosion occurred about 70 million years ago, when dinosaurs were still roaming the Earth, but its light only reached us in 2018. At its peak, this supernova was 5 billion times brighter than the Sun! However, as usually happens, after a few months its light began to fade, and now it is no longer visible. Immediately after the explosion was detected, the Hubble telescope began regularly photographing the galaxy NGC 2525. The presented timelapse covers a whole year of observations, demonstrating how the supernova gradually faded in brightness.

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DESI has made the largest 3D map of our Universe to date Earth is at the center in this animation, each blue point is a galaxy: > 14 million galaxies in total up to 11 billion light years away The gaps are the regions where our own galaxy blocks the view

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Carl Sagan explains why humanity’s oldest illusion collapses the moment we look at the real scale of the universe. “Here we are, like mites on a plum. And the plum is this little planet.” “And the plum goes around an insignificant local star, the Sun.” “That star is on the obscure outskirts of an ordinary galaxy, the Milky Way.” “The Milky Way contains hundreds of billions of other stars.” “And this galaxy is only one among billions of other galaxies that make up the universe.” “Now it is beginning to look as if even this universe may be one of an enormous number, maybe even an infinite number, of other closed-off universes.” “So the idea that we are central…” “That the reason there is a universe is us, is pathetic.” “We have to understand the universe that we really live in.” “Some of our myths and some of our religion are inconsistent with it.” “It is time to change the myth.”

Carl Sagan explains why humanity’s oldest illusion collapses the moment we look at the real scale of the universe. “Here we are, like mites on a plum. And the plum is this little planet.” “And the plum goes around an insignificant local star, the Sun.” “That star is on the obscure outskirts of an ordinary galaxy, the Milky Way.” “The Milky Way contains hundreds of billions of other stars.” “And this galaxy is only one among billions of other galaxies that make up the universe.” “Now it is beginning to look as if even this universe may be one of an enormous number, maybe even an infinite number, of other closed-off universes.” “So the idea that we are central…” “That the reason there is a universe is us, is pathetic.” “We have to understand the universe that we really live in.” “Some of our myths and some of our religion are inconsistent with it.” “It is time to change the myth.”

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Scientists have created the largest simulation of the Universe using 36,000 AMD Instinct MI250X graphics cards. This project will allow us to better understand the nature of dark matter and the processes of stellar evolution. In the video, each dot represents a separate galaxy. However, all this is only 0.001% of the scale model that is planned to be completed. On such a scale, the Earth turns out to be much smaller than we are used to thinking.

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Earth orbits the Sun, and the Sun orbits the center of the galaxy... but what is the Milky Way itself orbiting? The Milky Way is not orbiting a single object. Instead, it is moving around a shared center of mass alongside the Andromeda galaxy. While most of the universe is being pushed apart by dark energy, the gravity within our "Local Group" is strong enough to pull these two galaxies toward each other in a slow "cosmic dance." This movement isn't a clean, circular orbit; it is a direct path toward a massive collision and merger that will occur in about 4 to 5 billion years.

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Elon Musk: Our squabbles on Earth are very minor when you consider the grandness of the universe. “It's awe-inspiring to consider just how tiny we are in the grand scheme of things. And yet we often get sort of caught up in the sort of these sort of squabbles on Earth that are really very sort of minor things when you consider the grandness of the universe. And so I think it is important actually to consider the grandness of the universe and what we can do that is much greater than what we've done before, as opposed to worry about sort of small squabbles on Earth. There's not much point in that. We want to be a civilization that expands to the galaxy with spaceships that anyone can go anywhere they want and at any time that would be epic. And have a city on the moon, cities on Mars, populate the solar system and send spaceships to other star systems. That sounds like the best possible future.” From: Terafab announcement, March 21, 2026

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A breathtaking view of a region in space located in NGC 3324, known as the Cosmic Cliffs, located approximately 7,600 light-years from Earth (Credit: NASA, ESA, CSA, and STScI)

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A one-in-a-million chance—and it happened. A team from the Technical University of Munich spent six years compiling a list of promising gravitational lenses and waiting for a supernova to explode behind one of them. In August 2025, it happened. A superluminous supernova 10 billion light-years away was located precisely behind two foreground galaxies—and its light, bent by gravity, produced five images of the same explosion. Typically, lenses produce two or four—five was a surprise even to the authors. The supernova was named SN Winny. The odds of such a coincidence are less than one in a million. But the value of the discovery is enormous. Light from the supernova travels to us along different paths around the lensing galaxies, and each path has its own length. Because of this, the five copies appear with different time delays. By measuring these delays and knowing the mass distribution in the lensing galaxies, one can directly calculate the Hubble-Lemaître constant, or the rate of expansion of the Universe. How is this better than existing methods? The classic "cosmic distance scale" is a multi-step process, with errors accumulating from step to step. Microwave background radiation measurements are precise, but depend on models of the evolution of the Universe. The lensed supernova method is a single-step process, with completely different sources of error. SN Winny is particularly convenient: it is lensed by just two individual galaxies with a simple mass distribution, rather than a complex cluster. SN Winny is currently being observed by telescopes around the world. The results could bring us closer to resolving the Hubble controversy—the discrepancy between the two main methods for measuring the expansion rate.

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This archive film shows the testing of the most powerful bomb ever built, and detonated, in human history. Known as the “Tsar Bomba,” it was tested on the 30th Oct, 1961, at the Sukhoi Nose nuclear test site on the island of Novaya Zemlya Russia The power of the explosion exceeded 58 megatons, and the height of the explosion exceeded 67 km. The flash was visible at a distance of more than 1000 km; in the village of Dikson, 780 km from the epicenter of the explosion, glass in the windows of houses was broken, and the blast wave circled the globe three times. Today, Russia possesses the largest and most advanced Nuclear arsenal on planet Earth, It also possesses the most advanced delivery systems in existence. The idea that Western politicians would consider, even the remote possibility of pushing for escalation against Russia that could, however unlikely end in the use of these weapons, is absolutely terrifying.

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Hubble

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