Comet C/2025 R3 (PanSTARRS) might be the brightest comet of the year, scientists predict.

The astrophysicist quipped, “ Keep popcorn ready.” Before the inevitable happens, here’s your chance to catch the exocomet ...

Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory ...

Scientists are reexamining long-held assumptions about interstellar objects after new observations of 3I/ATLAS, only the ...

An extraordinary new image of interstellar comet 3I/ATLAS has given scientists their clearest view yet of a rare visitor from ...

Interstellar comet 3I/ATLAS has just pulled off the kind of stunt that keeps planetary scientists humble. After racing ...

From the patio of my room at Reset Hotel—a newly opened boutique property located just outside of Joshua Tree National Park—I ...

KEY OBSERVATIONS A comet’s tail is supposed to flee the Sun, driven outward by radiation and solar wind. That rule has held ...

Loeb was referencing the CIA’s response to a query by UFO researcher/conspiracy theorist John Greenewald Jr. In the letter, ...

The response came after John Greenewald Jr., an American researcher and ufologist, requested any CIA "assessments, reports, ...