Latest news with #MartinStill
Economic Times
2 days ago
- Science
- Economic Times
Rare interstellar comet spotted zooming through our solar system, only the 3rd ever seen
A mysterious visitor from another star system is currently flying through our cosmic neighborhood, and scientists are keeping a close eye on it. The recently discovered comet is unlike anything we have seen before. The first detection of 3I/ATLAS was made on July 1 by the Asteroid Terrestrial-impact Last Alert System, or ATLAS. According to a statement from the National Science Foundation (NSF) NOIRLab, which runs the International Gemini Observatory, it is only the third known interstellar object, indicating it didn't originate in our solar system, as per a report by Space. While traveling toward the inner solar system, the interstellar visitor 3I/ATLAS was spotted by astronomers in a stunning new image. Only three interstellar objects have been found to reach our solar system, after 1I'Oumuamua in 2017 and 2I/Borisov in 2019. The newly discovered comet was photographed by the Gemini North telescope in Hawai'i as it passed through our cosmic neighborhood, some 290 million miles (465 million kilometers) away from Earth. The Gemini North telescope captured this massive 12-mile-wide comet, providing a once-in-a-lifetime opportunity to study material from beyond our star. ALSO READ: Wicked 2 just made a massive change to this character, and fans might actually love it On October 30, 3I/ATLAS will cross within 130 million miles (210 million km), or barely inside the orbit of Mars, of the sun. No threat to Earth will come from 3I/ATLAS, which will pass within 170 million miles (270 million km) of Earth in December."This interstellar wanderer has been critically characterized early thanks to the International Gemini Observatory's sensitivity and scheduling agility," said Martin Still, NSF program director for the International Gemini Observatory."We look forward to a bounty of new data and insights as this object warms itself on sunlight before continuing its cold, dark journey between the stars."The relics of distant star systems that have been blasted into space are known as interstellar objects, such as 3I/ATLAS. According to the statement, they provide important information about the components that were present when and where other planetary systems in the universe formed, including their chemical composition, as per a report by it is thought that other objects of this kind frequently go through our solar system, they are very challenging to photograph. ALSO READ: 12,000 years of art? Ancient Mongolian elk carvings morph into mysterious wolf symbols However, 3I/ATLAS is a better target for research because it is significantly larger than earlier interstellar objects, with an estimated diameter of 12 miles (20 km). The comet has a compact coma, which is the cloud of gas and dust around its icy core, according to the latest photos taken by the Gemini North observatory. According to other observations, it might be the oldest comet ever found, possibly older than our solar system and it originates from the Milky Way's outer thick will be 3I/ATLAS's only visit to our solar system because of its extremely eccentric orbit, which prevents it from making a full orbit around the sun. Therefore, during the comet's brief visit before it departs for interstellar space, astronomers from all over the world are observing it with a variety of telescopes. Why is 3I/ATLAS such a big deal?It's only the third interstellar object ever discovered, and it's the largest by far. Will it return or hit Earth? No. It will pass by safely and not return; it is a one-time visitor.
Time of India
2 days ago
- Science
- Time of India
Rare interstellar comet spotted zooming through our solar system, only the 3rd ever seen
A mysterious visitor from another star system is currently flying through our cosmic neighborhood , and scientists are keeping a close eye on it. The recently discovered comet is unlike anything we have seen before. The first detection of 3I/ATLAS was made on July 1 by the Asteroid Terrestrial-impact Last Alert System, or ATLAS. According to a statement from the National Science Foundation (NSF) NOIRLab, which runs the International Gemini Observatory, it is only the third known interstellar object, indicating it didn't originate in our solar system, as per a report by Space. Explore courses from Top Institutes in Select a Course Category While traveling toward the inner solar system, the interstellar visitor 3I/ATLAS was spotted by astronomers in a stunning new image. Only three interstellar objects have been found to reach our solar system, after 1I'Oumuamua in 2017 and 2I/Borisov in 2019. How close will it get to Earth and the Sun? Live Events The newly discovered comet was photographed by the Gemini North telescope in Hawai'i as it passed through our cosmic neighborhood, some 290 million miles (465 million kilometers) away from Earth. The Gemini North telescope captured this massive 12-mile-wide comet, providing a once-in-a-lifetime opportunity to study material from beyond our star. ALSO READ: Wicked 2 just made a massive change to this character, and fans might actually love it On October 30, 3I/ATLAS will cross within 130 million miles (210 million km), or barely inside the orbit of Mars, of the sun. No threat to Earth will come from 3I/ATLAS, which will pass within 170 million miles (270 million km) of Earth in December. "This interstellar wanderer has been critically characterized early thanks to the International Gemini Observatory's sensitivity and scheduling agility," said Martin Still, NSF program director for the International Gemini Observatory. "We look forward to a bounty of new data and insights as this object warms itself on sunlight before continuing its cold, dark journey between the stars." What makes 3I/ATLAS different from other comets? The relics of distant star systems that have been blasted into space are known as interstellar objects, such as 3I/ATLAS. According to the statement, they provide important information about the components that were present when and where other planetary systems in the universe formed, including their chemical composition, as per a report by Space. Although it is thought that other objects of this kind frequently go through our solar system, they are very challenging to photograph. ALSO READ : 12,000 years of art? Ancient Mongolian elk carvings morph into mysterious wolf symbols However, 3I/ATLAS is a better target for research because it is significantly larger than earlier interstellar objects, with an estimated diameter of 12 miles (20 km). The comet has a compact coma, which is the cloud of gas and dust around its icy core, according to the latest photos taken by the Gemini North observatory . According to other observations, it might be the oldest comet ever found, possibly older than our solar system and it originates from the Milky Way's outer thick disk. Why are scientists racing to study it now? This will be 3I/ATLAS's only visit to our solar system because of its extremely eccentric orbit, which prevents it from making a full orbit around the sun. Therefore, during the comet's brief visit before it departs for interstellar space, astronomers from all over the world are observing it with a variety of telescopes. FAQs Why is 3I/ATLAS such a big deal? It's only the third interstellar object ever discovered, and it's the largest by far. Will it return or hit Earth? No. It will pass by safely and not return; it is a one-time visitor.
Gizmodo
4 days ago
- Science
- Gizmodo
Our Best View Yet of Interstellar Comet 3I/ATLAS
A comet unlike any seen before has fixated astronomers around the world. An observatory in Hawaii has unveiled the most stunning image of this ancient interstellar visitor yet. The Gemini North telescope on Maunakea, Hawaii, recently snapped a close-up of 3I/ATLAS, the third interstellar object ever discovered. The telescope's highly sensitive Multi-Object Spectrograph captured the comet's compact coma—a cloud of gas and dust surrounding its icy nucleus—in striking detail. 3I/ATLAS is inbound to the inner solar system, and as it approaches the Sun and heats up, its coma will expand and make the comet appear brighter. Observing this uptick in activity, known as cometary outgassing, will allow astronomers to gain more insight into the composition of 3I/ATLAS. Understanding what this interstellar comet is made of will offer a glimpse of the conditions and processes that shaped the distant star system from which it came. 'The sensitivity and scheduling agility of the International Gemini Observatory has provided critical early characterization of this interstellar wanderer,' Martin Still, NSF program director for the International Gemini Observatory, said in a statement. 'We look forward to a bounty of new data and insights as this object warms itself on sunlight before continuing its cold, dark journey between the stars.' The International Astronomical Union's Minor Planet Center confirmed that this comet came from outside our solar system on July 2. Since then, astronomers have been racing to gather as much data on it as possible. Preliminary findings suggest 3I/ATLAS is the oldest comet ever found, roughly 2 billion years older than our solar system. What's more, it appears to have come from an underexplored region of the Milky Way's galactic disk. This is the disk-like component of our galaxy containing stars, gas, and dust that rotates in a circular coplanar motion around the center of the galaxy. Based on its trajectory, 3I/ATLAS likely came from the thick part of the disk, which contains roughly 10% of the stellar mass of the Milky Way. Stars located in the thick disk are generally much older than those located in the galaxy's thin disk. This comet is older, larger, and faster than the two interstellar objects that came before it: 'Oumuamua and Comet 2I/Borisov. One recent study, which has yet to undergo peer review, found that 3I/ATLAS has a hyperbolic velocity of about 37 miles per second (60 kilometers per second). That's roughly twice the speed of both 'Oumuamua and Borisov. The researchers also estimated the newly discovered comet to be up to 6 miles (10 kilometers) wide, which would make it 100 times wider than 'Oumuamua and 10 times wider than Borisov. If 3I/ATLAS truly is that big, this would imply that galaxies are far more efficient at making these kinds of objects than scientists thought. The study authors note, however, that estimations of this comet's size will likely shrink as astronomers gather more observations. The Gemini Observatory and many others across the globe will continue using a wide variety of telescopes to observe 3I/ATLAS as it rockets toward the Sun. The comet should make its closest approach to our home star on October 29 and its closest approach to Earth on October 30. It will keep a safe distance from our planet, but the flyby will still allow astronomers to gather more detailed observations of this comet before it leaves our solar system for good. Such studies could begin to unravel the many mysteries of 3I/ATLAS, as its characteristics remain largely unknown. Still, it's already becoming clear that this interstellar comet is totally different from any we've seen before, offering brand new insights into galactic processes beyond our solar system.
Yahoo
4 days ago
- Science
- Yahoo
Astronomers capture 1st close-up photograph of new interstellar visitor
It's out of this world. Or, more accurately, this solar system. On July 1, astronomers discovered an object near the orbit of Jupiter that was somewhat peculiar. It had a strange orbit, one that didn't take it around the sun like most asteroids or comets. Eventually it was confirmed that this object — named 3I/ATLAS, or C/2025 N1 (ATLAS) — was an interstellar visitor. Now, using the U.S. National Science Foundation's (NSF) Gemini North telescope in Hawaii, astronomers have captured the first detailed image of this cosmic interloper. "We look forward to a bounty of new data and insights as this object warms itself on sunlight before continuing its cold, dark journey between the stars," Martin Still, NSF program director for the International Gemini Observatory, said in a statement. The comet will continue to be visible in large telescopes until September, after which it will be lost in the sun's glare. Learning more about the comet "As this is only our third interstellar visitor ever discovered, we're excited to learn about this entirely new class of object," Paul Wiegert, an astronomy professor at Western University, told CBC News in an email. Astronomers like to study comets and asteroids as they are left over from our solar system's earliest formation and can reveal what conditions were like at the time. Being able to study something from outside of our neighbourhood could potentially provide more knowledge about other star systems. Current observations suggest the comet is roughly 20 kilometres in diameter, far larger than the previous two interstellar comets astronomers observed passing through our solar system. The first comet was 'Oumuamua, which had a measly diameter of 200 metres. The second was 2I/Borisov, which was one kilometre in diameter. The fact that 3I/ATLAS is so large is a boon to astronomers: It makes it easier to study, particularly as it nears Earth. It will make a close approach in December, but poses no threat. A recent study presented by author Matthew Hopkins at the Royal Astronomical Society's National Astronomy Meeting 2025 in Durham, England, suggests that this new visitor may be the oldest comet ever seen. He estimates its origin to be from a part of our galaxy that is home to ancient stars, and says that it could be seven billion years old, far older than our galaxy's 4.5 billion years. And this new visitor is hustling: when it was discovered, it was travelling at roughly 61 kilometres per second. How they know it's not from our neighbourhood Astronomers can determine the origin of comets or asteroids based on their orbits' eccentricity, or how stretched out its path is. An eccentricity of 0 means it is a perfectly circular orbit. An eccentricity greater than one means the orbit does not circle around the sun, and the higher the value, the more stretched out the orbit. WATCH | Orbit of third-known interstellar object: In 3I/ATLAS's case, its orbit is 6.2, which is how astronomers knew that it came from beyond the solar system. For comparison, 'Oumuamua had an eccentricity of 1.2 and 2I/Borisov's eccentricity was 3.6. Currently, this new comet is still within Jupiter's orbit, roughly 465 million kilometres from Earth. It will make its closest approach to our planet on Dec. 19, at a distance of roughly 270 million kilometres. It will reach its closet point to the sun on Oct. 30 at a distance of 210 million kilometres, which will be just inside the orbit of Mars. Though astronomers have quickly learned some things about this newest interloper, they hope to learn more over time. "This one seems much like a comet from our own solar system. That is, mostly made of ice which has been frozen for billions of years as it wandered the galaxy, but now [is] starting to gently turn to vapour in the light of our sun. This makes 3I/ATLAS look fuzzy with a tail, visible in the image," Wiegert said. "But we really don't know if it is like one of our comets (which are leftover building block from when the Earth and planets formed) or something completely different."
CBC
4 days ago
- Science
- CBC
Astronomers capture 1st close-up photograph of new interstellar visitor
It's out of this world. Or, more accurately, this solar system. On July 1, astronomers discovered an object near the orbit of Jupiter that was somewhat peculiar. It had a strange orbit, one that didn't take it around the sun like most asteroids or comets. Eventually it was confirmed that this object — named 3I/ATLAS, or C/2025 N1 (ATLAS) — was an interstellar visitor. Now, using the U.S. National Science Foundation's (NSF) Gemini North telescope in Hawaii, astronomers have captured the first detailed image of this cosmic interloper. "We look forward to a bounty of new data and insights as this object warms itself on sunlight before continuing its cold, dark journey between the stars," Martin Still, NSF program director for the International Gemini Observatory, said in a statement. The comet will continue to be visible in large telescopes until September, after which it will be lost in the sun's glare. Learning more about the comet "As this is only our third interstellar visitor ever discovered, we're excited to learn about this entirely new class of object," Paul Wiegert, an astronomy professor at Western University, told CBC News in an email. Astronomers like to study comets and asteroids as they are left over from our solar system's earliest formation and can reveal what conditions were like at the time. Being able to study something from outside of our neighbourhood could potentially provide more knowledge about other star systems. Current observations suggest the comet is roughly 20 kilometres in diameter, far larger than the previous two interstellar comets astronomers observed passing through our solar system. The first comet was 'Oumuamua, which had a measly diameter of 200 metres. The second was 2I/Borisov, which was one kilometre in diameter. The fact that 3I/ATLAS is so large is a boon to astronomers: It makes it easier to study, particularly as it nears Earth. It will make a close approach in December, but poses no threat. A recent study presented by author Matthew Hopkins at the Royal Astronomical Society's National Astronomy Meeting 2025 in Durham, England, suggests that this new visitor may be the oldest comet ever seen. He estimates its origin to be from a part of our galaxy that is home to ancient stars, and says that it could be seven billion years old, far older than our galaxy's 4.5 billion years. And this new visitor is hustling: when it was discovered, it was travelling at roughly 61 kilometres per second. How they know it's not from our neighbourhood Astronomers can determine the origin of comets or asteroids based on their orbits' eccentricity, or how stretched out its path is. An eccentricity of 0 means it is a perfectly circular orbit. An eccentricity greater than one means the orbit does not circle around the sun, and the higher the value, the more stretched out the orbit. WATCH | Orbit of third-known interstellar object: Orbit of third-known interstellar object 14 hours ago In 3I/ATLAS's case, its orbit is 6.2, which is how astronomers knew that it came from beyond the solar system. For comparison, 'Oumuamua had an eccentricity of 1.2 and 2I/Borisov's eccentricity was 3.6. Currently, this new comet is still within Jupiter's orbit, roughly 465 million kilometres from Earth. It will make its closest approach to our planet on Dec. 19, at a distance of roughly 270 million kilometres. It will reach its closet point to the sun on Oct. 30 at a distance of 210 million kilometres, which will be just inside the orbit of Mars. Though astronomers have quickly learned some things about this newest interloper, they hope to learn more over time. "This one seems much like a comet from our own solar system. That is, mostly made of ice which has been frozen for billions of years as it wandered the galaxy, but now [is] starting to gently turn to vapour in the light of our sun. This makes 3I/ATLAS look fuzzy with a tail, visible in the image," Wiegert said. "But we really don't know if it is like one of our comets (which are leftover building block from when the Earth and planets formed) or something completely different."
