A newly observed interstellar object, 3I/ATLAS, contains iron-free nickel alloys — a composition former NASA surgeon Dr.

I/Atlas continues to head toward Earth, reaching a close distance to our sun. Here's what to know about the online discord ...

The interstellar object ʻOumuamua passed through our solar system in 2017, moving fast, reflecting light unusually, and ...

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How ...

As the third confirmed interstellar object to pass through our solar system, 3I/ATLAS is prime for new discoveries. It was ...

Interstellar comet 3I/ATLAS has reached its closest approach to the Sun, a critical moment for astronomers to observe its ...

Astronomer Avi Loeb suggests that a quasi-satellite may be the "relic of an interplanetary mission by humanity from the 1960s ...

Comet 3I/ATLAS nears the sun Oct. 29. Experts say it's natural, despite viral alien theories. Here's how to see it from ...

Astronomers using NASA's Swift telescope detected water on interstellar comet 3I/ATLAS in a surprising location. Discover how ...

Interstellar visitor 3I/ATLAS reaches perihelion, its closest approach to the Sun at 1.4 AU, just inside Mars' orbit.

According to astronomer Avi Loeb, it's the perfect day to test whether interstellar object 3I/ATLAS is the remnant of an ...

The comet, called 3I/ATLAS, is the third known interstellar object that has come through our solar system. As it flies deeper ...