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🚨: This star exploded when dinosaurs still roamed Earth, and its light didn’t reach us until 2015. SN 2015F, a Type Ia supernova, is located roughly 81 million light-years away.

Space Explained

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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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This is the Chicxulub crater, formed when a massive asteroid slammed into Earth around 66 million years ago. Which eradicated roughly 75% of Earth's species, including non-avian dinosaurs.

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These stellar siblings brought the drama! Our Fermi telescope revealed that these two supernova remnants may be debris from a pair of once-orbiting massive stars that both exploded. The first blast kicked one star light-years away before its own blow-up:

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#HappyHolidays from Hubble! Here’s a festive sonification of RS Puppis, a glittering star wreathed with dust. Located about 6,500 light-years away, this star rhythmically brightens and dims over a six-week cycle:

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🚨ISS FOOTAGE: A LOOK AT OUR NIGHT SKY FROM SPACE This is what Earth looks like at an altitude of 250 miles: wars, cities, your group chat, all just spots of light blinking in infinity. Each cluster of lights is a city flickering like it's trying to be mistaken for a star by aliens a million light years away. Kind of magical. Kind of funny. Source: @nasadailyupdates on TikTok

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We’re about ~3 years away from EVERY SINGLE PERSON ON PLANET EARTH agreeing that this type of Machine is LIGHT YEARS better than Barbell Bench Press for building the Chest We are very very close to consensus on this….there are just a few stubborn people holding us up!

We’re about ~3 years away from EVERY SINGLE PERSON ON PLANET EARTH agreeing that this type of Machine is LIGHT YEARS better than Barbell Bench Press for building the Chest We are very very close to consensus on this….there are just a few stubborn people holding us up!

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this is the star Sirius, seen through a $900 telescope with no filter. does this look and behave like something that is presently 8.611 light years away? link to TT live:

this is the star Sirius, seen through a $900 telescope with no filter. does this look and behave like something that is presently 8.611 light years away? link to TT live:

The Rubber Duck ™

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Hubble spotted an unusual star 128 light-years away. With its unique ultraviolet capabilities, Hubble determined this star is a rare ultramassive white dwarf, made up of merged stars: Find out more about this star's intriguing atmosphere in this video ⬇️

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64,900 Aufrufe • vor 11 Monaten

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 galaxy NGC 2442. Such supernovae are among the brightest and most powerful events in the Universe, leaving behind remnants and influencing the evolution of surrounding matter. This cosmic explosion is a reminder of the scale and dynamics of our universe, and how events millions of light-years away can coincide with important stages in the history of life on Earth.

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Black Hole

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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.

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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You're looking at the longest X-ray timelapse of a supernova ever captured. In 1604, a brilliant new star suddenly blazed in the night sky, surpassing Jupiter in brightness for weeks. This spectacle marked the explosive death of a white dwarf in a Type Ia supernova—one of the universe's most energetic cataclysms. Over 400 years later, astronomers continue to observe its expanding aftermath. Drawing on 25 years of X-ray observations from NASA’s Chandra X-ray Observatory (spanning 2000 to 2025), scientists have created the longest-ever X-ray timelapse of Kepler’s Supernova Remnant. This glowing shell of debris, located about 17,000 light-years away in our Milky Way, appears as it plows through interstellar space. The remnant expands unevenly: the lower edge races outward at up to 13.8 million miles per hour (22.2 million km/h)—roughly 2% the speed of light—while the upper regions move more slowly, around 4 million miles per hour (6.4 million km/h), due to encounters with denser surrounding gas. These asymmetries allow researchers to map the pre-explosion environment and refine models of the blast itself. Beyond destruction, such supernovae enrich the cosmos by forging and dispersing heavy elements essential for forming new stars, planets, and ultimately, life. Through enduring missions like Chandra, we gain a front-row view to these ancient events, revealing how the echoes of stellar deaths persistently sculpt the evolving universe. ["Supernova Remnant Video From NASA’s Chandra Is Decades in Making." NASA, 2026]

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Massimo

32,866 Aufrufe • vor 6 Monaten

Zoom in to a glowing nebula and stars like sand grains in the Triangulum galaxy (M33), a testament to the power of Hubble. Triangulum is a cosmic neighbor to our Milky Way galaxy, located 2.7 million light-years away. Credit: NASA, ESA, STScI.

Zoom in to a glowing nebula and stars like sand grains in the Triangulum galaxy (M33), a testament to the power of Hubble. Triangulum is a cosmic neighbor to our Milky Way galaxy, located 2.7 million light-years away. Credit: NASA, ESA, STScI.

Hubble Space Telescope

13,617 Aufrufe • vor 2 Jahren

Voyager is making history again. Launched in 1977, the spacecraft will reach a unique distance of one light-day from Earth in 2026. Voyager 1 is now 24 billion kilometers away and continues its journey through interstellar space, remaining the most distant human-made object. The Golden Record, containing a message to extraterrestrials, is still on board.

Voyager is making history again. Launched in 1977, the spacecraft will reach a unique distance of one light-day from Earth in 2026. Voyager 1 is now 24 billion kilometers away and continues its journey through interstellar space, remaining the most distant human-made object. The Golden Record, containing a message to extraterrestrials, is still on board.

Black Hole

128,067 Aufrufe • vor 10 Monaten

I’ll give it ~3 more years before EVERY SINGLE PERSON ON PLANET EARTH agrees that this type of Machine is LIGHT YEARS better than Barbell Bench Press for building the Chest We are very very close to consensus on this….only a few stubborn people holding us up!

I’ll give it ~3 more years before EVERY SINGLE PERSON ON PLANET EARTH agrees that this type of Machine is LIGHT YEARS better than Barbell Bench Press for building the Chest We are very very close to consensus on this….only a few stubborn people holding us up!

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Said it before, I’ll say it again: We’re about ~3 years away from EVERY SINGLE PERSON ON PLANET EARTH agreeing that this type of Machine is LIGHT YEARS better than Barbell Bench Press for building the Chest Just give it a little more time…the stragglers will catch up shortly!

Said it before, I’ll say it again: We’re about ~3 years away from EVERY SINGLE PERSON ON PLANET EARTH agreeing that this type of Machine is LIGHT YEARS better than Barbell Bench Press for building the Chest Just give it a little more time…the stragglers will catch up shortly!

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Hubble Records Wandering Black Hole That Swallowed a Star NASA astronomers have recorded a rare event using the Hubble Space Telescope and other observatories — a tidal disruption event (TDE) involving a wandering black hole. It occurred 600 million light years from Earth and provided new insights into the behavior of black holes. The object was spotted due to gravitational lensing — the distortion of light from distant bodies under the influence of gravity. As it approached the star, the black hole tore it apart, creating a bright accretion disk that radiated in ultraviolet and visible light. Unlike typical black holes in the centers of galaxies, this one was located 2,600 light years from the core, where a supermassive black hole was already located. Despite their relative proximity, the two holes do not yet form a single system, but they may merge in the future.

Hubble Records Wandering Black Hole That Swallowed a Star NASA astronomers have recorded a rare event using the Hubble Space Telescope and other observatories — a tidal disruption event (TDE) involving a wandering black hole. It occurred 600 million light years from Earth and provided new insights into the behavior of black holes. The object was spotted due to gravitational lensing — the distortion of light from distant bodies under the influence of gravity. As it approached the star, the black hole tore it apart, creating a bright accretion disk that radiated in ultraviolet and visible light. Unlike typical black holes in the centers of galaxies, this one was located 2,600 light years from the core, where a supermassive black hole was already located. Despite their relative proximity, the two holes do not yet form a single system, but they may merge in the future.

Black Hole

28,483 Aufrufe • vor 1 Jahr

Hubble Records Wandering Black Hole That Swallowed a Star NASA astronomers have recorded a rare event using the Hubble Space Telescope and other observatories — a tidal disruption event (TDE) involving a wandering black hole. It occurred 600 million light years from Earth and provided new insights into the behavior of black holes. The object was spotted due to gravitational lensing — the distortion of light from distant bodies under the influence of gravity. As it approached the star, the black hole tore it apart, creating a bright accretion disk that radiated in ultraviolet and visible light. Unlike typical black holes in the centers of galaxies, this one was located 2,600 light years from the core, where a supermassive black hole was already located. Despite their relative proximity, the two holes do not yet form a single system, but they may merge in the future.

Hubble Records Wandering Black Hole That Swallowed a Star NASA astronomers have recorded a rare event using the Hubble Space Telescope and other observatories — a tidal disruption event (TDE) involving a wandering black hole. It occurred 600 million light years from Earth and provided new insights into the behavior of black holes. The object was spotted due to gravitational lensing — the distortion of light from distant bodies under the influence of gravity. As it approached the star, the black hole tore it apart, creating a bright accretion disk that radiated in ultraviolet and visible light. Unlike typical black holes in the centers of galaxies, this one was located 2,600 light years from the core, where a supermassive black hole was already located. Despite their relative proximity, the two holes do not yet form a single system, but they may merge in the future.

Black Hole

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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

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

Martin Bauer

154,668 Aufrufe • vor 1 Jahr

[Heo Seongbeom Youtube] 260305 Jin - Moon 🌕🌏 (part1) 👨‍🏫It’s a solo song by Jin, and BTS are also preparing for a comeback in March. I’m really looking forward to it. I’m the moon, and you are the Earth. So it becomes a kind of love triangle. Earlier the sea loved the moon, but who does the moon love? The moon loves the Earth. That idea is reflected in this song, so let’s try interpreting it. Since when have the moon and the Earth been together like this? We’ve been together for so long, but when did it start? About 4.51 to 4.53 billion years ago. Scientists figured this out through radioactive isotope analysis, which showed that the Moon is about 4.51 to 4.53 billion years old. “Shining just by existing.” This line is directed at the Earth. But does the Earth actually shine just by existing? No. Because the Earth is a planet and does not produce its own light. If the Earth appears to shine, it’s probably because of artificial lights made by humans. “Can I stay by your side and protect you?” It sounds shy, but in reality the moon can’t help staying there, because it’s bound by gravity. And here we see the main line of the song. “You are my Earth, and to you I’m just a moon. Your small star that lights up your heart.” It’s poetic, but is the moon actually a star? No. Celestial bodies are generally divided into two categories. First, there are stars (stellar bodies). These produce their own light. Second, there are planets. Planets do not produce their own light. Instead, planets usually orbit around a star. The Earth is a planet. From our perspective, the star in our system is the Sun. So when you look at the night sky and see stars, those lights are actually other suns, each producing their own light. But sometimes when you see a particularly bright “star,” it may actually be a planet like Mercury, Venus, Mars, or Jupiter. Then you might ask: if planets don’t produce their own light, why do they shine? Because they reflect sunlight. The Moon also appears bright because it reflects the Sun’s light. #JIN #방탄소년단진 방탄소년단

[Heo Seongbeom Youtube] 260305 Jin - Moon 🌕🌏 (part1) 👨‍🏫It’s a solo song by Jin, and BTS are also preparing for a comeback in March. I’m really looking forward to it. I’m the moon, and you are the Earth. So it becomes a kind of love triangle. Earlier the sea loved the moon, but who does the moon love? The moon loves the Earth. That idea is reflected in this song, so let’s try interpreting it. Since when have the moon and the Earth been together like this? We’ve been together for so long, but when did it start? About 4.51 to 4.53 billion years ago. Scientists figured this out through radioactive isotope analysis, which showed that the Moon is about 4.51 to 4.53 billion years old. “Shining just by existing.” This line is directed at the Earth. But does the Earth actually shine just by existing? No. Because the Earth is a planet and does not produce its own light. If the Earth appears to shine, it’s probably because of artificial lights made by humans. “Can I stay by your side and protect you?” It sounds shy, but in reality the moon can’t help staying there, because it’s bound by gravity. And here we see the main line of the song. “You are my Earth, and to you I’m just a moon. Your small star that lights up your heart.” It’s poetic, but is the moon actually a star? No. Celestial bodies are generally divided into two categories. First, there are stars (stellar bodies). These produce their own light. Second, there are planets. Planets do not produce their own light. Instead, planets usually orbit around a star. The Earth is a planet. From our perspective, the star in our system is the Sun. So when you look at the night sky and see stars, those lights are actually other suns, each producing their own light. But sometimes when you see a particularly bright “star,” it may actually be a planet like Mercury, Venus, Mars, or Jupiter. Then you might ask: if planets don’t produce their own light, why do they shine? Because they reflect sunlight. The Moon also appears bright because it reflects the Sun’s light. #JIN #방탄소년단진 방탄소년단

star_jin

19,019 Aufrufe • vor 4 Monaten