Interstellar object
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New images of 3I/ATLAS show an anti-tail
NBC News· 2025-11-11 03:23
And tonight's feature of everything. It's been a few days since we've talked about our favorite interstellar object, ThreeI Atlas. And yes, we've got some updates.Check out these new images that show three Atlas in a whole new light. Uh what's going on with this this situation. Where are these jets uh is streaming out.What is all this. Is it breaking up after possibly going behind our sun. A little confusing because this all comes after last week images showed the object with no tail.Weird. So, how did the ...
New images show 3I/ATLAS does not have a tail
NBC News· 2025-11-06 04:23
Interstellar Object Observation - New images of interstellar object Three Atlas show it does not have a noticeable cometary tail, contrary to expectations [2] - The object experienced non-gravitational acceleration and a change in color to blue, and became brighter by a factor of five [1][7] - On December 19th, Three Atlas will be closest to Earth [8] Scientific Analysis and Uncertainty - Harvard astronomer Avi Loeb notes the object should have a massive cloud of gas and dust based on comet knowledge [4] - The object was heated by 770 watts per square meter after passing perihelion [4] - Carbon dioxide sublimation should have caused disintegration or a dense gas and dust cloud [5] - One interpretation suggests ice fragments evaporate and vaporize before forming a visible plume [6] - The object's behavior defies expectations, leading to uncertainty about its nature [7][9] Speculation and Future Research - The key question is whether the object is natural or technological in origin [10] - If natural, understanding its origin environment is crucial [10] - Further data in the coming weeks, especially around December 19th, is anticipated [8] - The object challenges existing expert knowledge, highlighting the value of scientific inquiry [11][12]
Interstellar object 3I/ATLAS to pass by Mars
NBC News· 2025-10-03 02:46
Interstellar Object 3i/Atlas Observations - Astronomers observe 3i/Atlas exhibiting unusual chemical signatures, producing more nickel than iron, a phenomenon not yet understood [2] - Size estimates of 3i/Atlas are around 3 miles wide, compared to Manhattan's 2 miles at its widest point [2] - 3i/Atlas is moving at 60 km/s, 600 times faster than the fastest race car on Earth, making its speed anomalous [8] Mars Flyby and Imaging - A fleet of camera-ready rovers and orbiters are prepared to capture images of 3i/Atlas during its closest pass on October 3rd [3] - NASA's Mars Reconnaissance Orbiter could provide a resolution of 30 kilometers per pixel, offering the best resolution of 3i/Atlas [5] Composition and Mass - Estimated minimum mass of 3i/Atlas is at least 33 billion tons, based on the lack of recoil as it sheds mass and nickel [6] - The object's trajectory aligns with the plane of the planets, which is difficult to explain naturally [7] Wow Signal Alignment - The direction of the Wow signal and 3i/Atlas align with a chance probability of 0.6% [13] - In 1977, 3i/Atlas was approximately three light-days away from the sun, requiring about a gigawatt (the output of a nuclear reactor) to produce the Wow signal [13][14] Potential Origin and Future Study - The object's anomalous nature raises the possibility, though less probable, that it could be technological rather than natural [7][8][15] - A proposal has been made to the United Nations to establish a committee to study interstellar objects detected by the Reuben Observatory in Chile [16]
Interstellar object 3I/ATLAS continues its journey across the solar system
NBC News· 2025-09-05 03:16
Interstellar Object Threeey Atlas Analysis - Observation of Threeey Atlas, the third interstellar object, is underway, with real-time streaming of telescope images [1] - The object is considered a building block from another star system, sparking scientific interest [1][2] - The object's tail development is under close observation, though its nature remains uncertain [2] Trajectory and Observation - Threeey Atlas will pass by Mars around October 3rd, offering NASA's Mars Reconnaissance Orbiter a prime viewing opportunity [3] - The Mars Reconnaissance Orbiter's camera could potentially resolve the object with a pixel size of 30 kilometers, providing crucial data [8] - Earth-based observation windows are closing due to the sun's glare, making the Mars flyby critical [2][9] Object Characteristics and Composition - Initial estimates suggested a size of 20 to 40 kilometers in diameter, comparable to a city like San Francisco [4] - The object's nature is debated: it could be a solid object or a dense cloud of dust [5] - Unusual behavior, such as a glow ahead of the object and a teardrop-shaped plume, is being investigated [10] - The object's plume is primarily carbon dioxide (95% by mass) with only 5% water vapor, based on web telescope data [12] - Recent data indicates the presence of nickel without iron, a combination typically associated with industrial production [12] Scientific Debate and Classification - The object's classification is uncertain, with possibilities ranging from a natural object to a technological one [14] - One astronomer uses a "Lobe scale" to rank the object, currently placing it at four out of ten, leaning towards natural but with open questions [14]
Interstellar object has astronomers debating its mysterious origin
NBC News· 2025-08-28 23:57
There's a mysterious interstellar object hurtling towards our solar system, exciting scientists across the globe. While many think it's just a comet, some theorizing a possible alien origin due to a few curious characteristics. The peculiar thing about it is that it's moving along a trajectory that is very special.Harvard physicist Avi Loe has been tracking the object named threeey atlas. when it arrives closest to the sun, the earth would be on the opposite side and we won't be able to observe it. But that ...