
Interstellar Comet Nears Earth for Final Farewell
Interstellar comet 3I/ATLAS is making its final close approach to Earth on Dec. 19, offering scientists a rare chance to study an object from outside our solar system.
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Interstellar comet 3I/ATLAS is making its final close approach to Earth on Dec. 19, offering scientists a rare chance to study an object from outside our solar system.

New images from NASA's Hubble and ESA's Juice spacecraft show interstellar comet 3I/ATLAS glowing with activity ahead of its close approach to Earth on Dec. 19.

NASA's PUNCH mission has completed a record-breaking, near-continuous 40-day observation of Comet SWAN, providing an unparalleled look at its journey.

NASA has confirmed the interstellar object 3I/ATLAS is a natural comet, not alien technology, based on data from over 20 missions observing the visitor.

A rare visitor from another star system, comet 3I/ATLAS, is passing through our solar system, offering scientists a unique chance to study material from deep space.

A rare interstellar object, 3I/ATLAS, has puzzled scientists after it rapidly and unexpectedly brightened during its recent close pass of the Sun.

A rare interstellar comet, 3I/ATLAS, is baffling scientists after they detected nickel vapor in its atmosphere at a distance where metals should be frozen.

NASA's Europa Clipper spacecraft is on a collision course with particles from an interstellar comet, offering a rare chance to sample material from outside our solar system.

A newly discovered comet, C/2025 R2 (SWAN), will make a close approach to Earth on October 21 and may become visible to the naked eye in dark skies.

A new study reveals interstellar comet 3I/ATLAS is ejecting large amounts of water at an unusual distance from the sun, challenging theories on cometary activity.

The European Space Agency's Mars orbiters have captured images of interstellar comet 3I/ATLAS from 30 million kilometers away, a rare observation of a visitor from another star system.

The interstellar object 3I/ATLAS was recently struck by a solar eruption as it travels toward a close flyby of Mars, an event scientists are eager to observe.