Scientists believe it will fly by Earth on or close to Dec. 19. It'll be some 170 million miles away. "So that's going to be ...

Harvard astrophysicist Avi Loeb has intensified his call for NASA to release high-resolution images of the enigmatic ...

Astronomers study 3I/Atlas as its tail rapidly expands and a strange cosmic radio signal reaches Earth, sparking new debate ...

Blue Origin's New Glenn rocket was scheduled for launch on Sunday (Nov. 9) but it has been delayed until Wednesday (Nov. 12) ...

While earlier observations indicated 3I/ATLAS appeared red in color, additional analysis has led astronomers to note in a ...

The interstellar comet 3I/Atlas reached its closest point to the sun. Here's how to follow the rest of its journey away from ...

The name 3I/ATLAS has a reason behind it. The first part of its nomenclature, 3I, is because it is the third interstellar ...

Nuclear propulsion in space is no longer a theoretical option — it is a necessity. Without it, deep-space research will ...

A viral claim suggests NASA detected 3I/ATLAS emitting pulse waves at 1,420 MHz, the same frequency SETI uses to search for ...

NASA has placed Comet C/2025 V1 under close observation after its rapid movement through the solar system drew comparisons to ...