A recently discovered interstellar comet, 3I\/ATLAS, is causing a stir in the scientific community.\u00a0<\/p>\n
Most comets detected so far are local to our solar system, but 3I\/ATLAS is a rare interstellar visitor. It was born in the deep reaches of space and will eventually leave, a temporary guest in our stellar home.\u00a0<\/p>\n
First spotted in July 2025, it\u2019s just the third interstellar object ever discovered, after 1I\/\u02bbOumuamua and 2I\/Borisov.\u00a0<\/p>\n
Its arrival has sparked a conversation that sounds like something out of science fiction.\u00a0<\/p>\n
The nature of this new object has led Harvard\u2019s Avi Loeb to speculate whether it could be extraterrestrial technology.\u00a0<\/p>\n
Loeb\u2019s analysis suggests the object\u2019s unique properties, like a possible \u201ccentral light source\u201d and a \u201cfine-tuned trajectory,\u201d could be evidence that an intelligent species sent it.<\/p>\n
The mysterious light glow<\/p>\n
In a recent blog post, Loeb analyzed a Hubble Space Telescope<\/a> image of 3I\/ATLAS, showing a light glow ahead of the object.\u00a0<\/p>\n While this glow could be from evaporating dust, Loeb\u2019s analysis suggests a different interpretation.<\/p>\n According to Loeb, the brightness of 3I\/ATLAS appears to be coming from its core or some central source, not from surrounding dust.<\/p>\n He offers two possible explanations for this self-generated light. The first is that 3I\/ATLAS is a rare, radioactive fragment from a supernova.\u00a0<\/p>\n The second, more speculative, possibility is that the object is a nuclear-powered spacecraft, with the dust coming from its surface as it travels through space.<\/p>\n \u201cThe image shows a glow of light, likely from a coma, ahead of the motion of 3I\/ATLAS towards the Sun. There is no evidence for a bright cometary tail in the opposite direction,\u201d he writes.<\/p>\n \u201c3I\/ATLAS could be a spacecraft powered by nuclear energy, and the dust emitted from its frontal surface might be from dirt that accumulated on its surface during its interstellar travel. This cannot be ruled out, but requires better evidence to be viable,\u201d he proposes in the blog post<\/a> dated August 18.\u00a0<\/p>\n He suggests this, combined with its \u201cfine-tuned trajectory,\u201d could point to a technological origin.\u00a0<\/p>\n Furthermore, the Harvard scientist believes the data show that 3I\/ATLAS is a similar size to the 1I\/\u02bbOumuamua and 2I\/Borisov.<\/p>\n It is just a bold claim right now <\/p>\n These are bold claims, and Loeb acknowledges that we need more evidence to prove them.\u00a0<\/p>\n But his controversial ideas<\/a> about these interstellar visitors have sparked widespread discussion and debate.<\/p>\n The scientist has a history of making controversial claims about objects from interstellar space.\u00a0<\/p>\n He is well-known for his bold claim that the first interstellar object found, 1I\/\u02bbOumuamua<\/a>, was an alien technology, like a solar sail or a probe.\u00a0<\/p>\n