A giant, 250,000-mile X-ray cloud has been found around the interstellar comet 3I/ATLAS, baffling experts. Discover why this ...

Scientists have discovered a strange chemical signature in 3I/ATLAS, different from anything ever seen in another comet. Using the Atacama Compact Array of the Atacama Large Millimeter/Submillimeter ...

Interstellar comet 3I/ATLAS is captured over Egypt’s Black Desert as it returns to view after its solar passage. Learn how the image was taken and how to observe it ...

The cometary cameraman was not the only one to snap the celestial snowball of late. On November 30, NASA’s Hubble Space ...

Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

Interstellar object 3I/Atlas appears in NASA’s Punch images during a 40-day study of Comet Swan, offering new data on motion near the Sun ...

Comet C/2025 R2 (SWAN)'s backdrop is dominated by the Eagle Nebula — a vast cosmic structure of dust and hydrogen-rich gas ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

An interstellar comet making a brief passage through the solar system has triggered one of the largest coordinated astronomical observation efforts in recent memory. Comet 3I/ATLAS, only the third ...

A staggering 250,000 kilometers per hour was the speed at which the comet had rushed through the inner solar system near the ...

Astronomers around the world are accelerating their study of Comet 3I/ATLAS, the third confirmed interstellar object to enter ...

Interstellar comet 3I/ATLAS is making its closest approach to Earth this month, captivating astronomers with its otherworldly ...