All articles tagged with #non gravitational acceleration
Scientists' recent radio observations of interstellar object 3I/ATLAS found no signals, while updated measurements reveal it is larger than previously thought and exhibits unusual non-gravitational motion, raising questions about its nature and activity, but no definitive conclusions have been reached.
Recent studies of 3I/ATLAS using radio telescopes and other data suggest its nucleus is about 1 kilometer in diameter, with no significant radio signals detected, and provide insights into its non-gravitational acceleration and mass loss, highlighting ongoing efforts to understand this interstellar object.
Interstellar comet 3I/ATLAS is experiencing a small, normal non-gravitational acceleration caused by outgassing as it approaches the Sun, which affects its orbit but does not indicate any artificial propulsion or spacecraft activity.
Recent images of the interstellar object 3I/ATLAS taken after its perihelion show a lack of a visible cometary tail despite signs of significant mass loss and non-gravitational acceleration, raising questions about its nature and composition, with comparisons to typical comets like Lemmon.
Observations of interstellar comet 3I/ATLAS suggest it has lost over 13% of its mass during its close approach to the Sun, experienced course changes, and exhibited unusual behaviors, providing valuable insights into interstellar objects and cometary physics.
New data on interstellar object 3I/ATLAS after its perihelion suggests it experienced significant mass loss and non-gravitational acceleration, with implications for its natural or artificial nature, and highlights ongoing scientific debates and anomalies surrounding its behavior.
Astronomers studying interstellar comet 3I/ATLAS have observed it changing color, brightening significantly, and showing signs of non-gravitational acceleration as it approached perihelion, indicating unusual cometary behavior and mass loss, with many aspects still to be understood.
Avi Loeb discusses the non-gravitational acceleration of interstellar object 3I/ATLAS near perihelion, analyzing whether it results from cometary outgassing or could indicate a technological propulsion system, with upcoming observations expected to clarify its nature.
Manhattan-sized comet 3I/ATLAS exhibited unusual behavior near the Sun, including non-gravitational acceleration and color changes, fueling speculation it might be an extraterrestrial probe rather than a typical comet, with some scientists suggesting it could be a technological artifact.
The interstellar object 3I/ATLAS showed evidence of non-gravitational acceleration at perihelion, possibly due to mass loss from sublimation or an internal engine, with upcoming observations expected to clarify its nature and properties.
Recent analysis suggests the interstellar comet 3I/ATLAS is unusually large and massive, possibly over three miles in diameter, with its mass and behavior challenging previous expectations about interstellar objects, raising questions about its composition and origin.
A recent study suggests that the interstellar object 3I/ATLAS is unusually massive and large, with a minimum diameter of 5 km and a mass exceeding 33 billion tons, based on its lack of detectable non-gravitational acceleration during observations from May to September 2025. This challenges previous assumptions about interstellar objects and raises questions about its origin, possibly hinting at a technological nature or an extraordinary natural object.
The article discusses the potential natural or artificial nature of the interstellar object 3I/ATLAS by examining its non-gravitational acceleration, which could indicate whether it is a natural comet or a technologically propelled object. Current observations suggest it is a dust-rich comet with minimal gas emission, and its expected non-gravitational acceleration is much lower than that of 'Oumuamua, but precise measurements are needed to determine its true nature.
A new study suggests that the non-gravitational acceleration of the interstellar object 'Oumuamua could be explained by the ejection of H2 molecules from radiolytically produced H2O ice. The study proposes that the object was composed of molecular hydrogen ice, which was ejected due to cosmic ray bombardment, causing the acceleration. This theory is supported by previous observations of H2 in interstellar and extragalactic ices and the ejection of H2O, O2, H2, and H from water ice by ion bombardment.