Just hours before the interstellar comet 3I/ATLAS reaches its closest point to Earth, astronomers are getting a second look at a striking new image that reveals the object's hidden chemistry. An image ...

Add Yahoo as a preferred source to see more of our stories on Google. These observations by NASA’s SPHEREx show the infrared light emitted by the dust, water, organic molecules, and carbon dioxide ...

Blasting Most Of Its Water Directly Toward The Sun Juice's SWI instrument revealed that most water vapor was released from ...

The most sensational story of the year for astronomers has been the discovery of the comet 3I/ATLAS, which was first observed on July 1, 2025 by NASA's Asteroid Terrestrial-impact Last Alert System ...

The Post's complete guide to catching 3I/ATLAS as it makes its closest approach to Earth on December 19. Here’s how to keep your 3I on it. With 3I/ATLAS slated to make its Earth tour in two days, ...

New evidence suggests that the famous interstellar traveler may be so old that its home system no longer exists.

Interstellar comet 3I/ATLAS has steadily been making its exit ever since it had a rendezvous at the end of October with the sun.

The interstellar comet 3I/ATLAS will reach its closest point to our world Dec. 19 and people will be able to observe it from home with telescopes on the ground, according to NASA. Since it was ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what you’ll need to catch a glimpse. Interstellar comet 3I/ATLAS streaks across ...

Add Yahoo as a preferred source to see more of our stories on Google. The mystifying 3I/ATLAS interstellar comet is blazing toward Earth and will in a matter of days come as close to our planet as it ...

Our solar system's famous "invader" might be as old as the Milky Way itself.

Comet 3I/ATLAS—the third interstellar object ever known to pass through our solar system—is accelerating and now approaching its closest point to Earth. “Significant” non-gravitational accelerations ...