The third known interstellar comet to visit our solar system has just done something no one had seen before: it lit up in ...
Among these celestial visitors — the interstellar object 3I/ATLAS, along with C/2025 A6 (Lemmon) and C/2025 R2 (SWAN) — not ...
NASA has now confirmed that 3I/ATLAS is not just another visitor from deep space but the largest interstellar comet ever measured, a frozen fragment of another star system sweeping through our own.
Comet 3I/ATLAS was discovered on July 1, 2025, by the NASA-funded ATLAS telescope in Rio Hurtado, Chile and was quickly ...
I/ATLAS is no ordinary comet. With its unusual rhythmic ‘heartbeat’ and surprising acceleration, it is taking us on a journey ...
Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed 3I/ATLAS, were captured by two of the the European Space Agency's Mars orbiters -- ...
Interstellar comet 3I/ATLAS on Wednesday reached its closest point to the Sun, a point known as perihelion. Although this cosmic visitor hasn’t been visible from Earth since September, our space-based ...