Interstellar visitor 3I/ATLAS is defying predictions, sparking 'Trojan Horse' theories. Its bizarre behaviour has forced NASA ...

On Oct. 29, 3I/Atlas will reach its closest point to the sun. This will also be the fastest speed it achieves in our solar ...

McKinley Museum planetarium director Suzie Dills says her trip to the Galileo museum in Italy was educational, and a thrill.

Multiple Mauna Kea observatories have been observing 3I/ATLAS, an interstellar comet. 3I/ATLAS originated from outside the ...

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

Only three confirmed interstellar objects have ever passed through our Solar System: the asteroid Oumuamua and the comets ...

The unusual trajectory of interstellar comet 3I/ATLAS has sparked speculation that it could be an alien spacecraft.

If such ‘twilight’ asteroids approach Earth, "they could pose serious impact hazards," warned the astronomer behind the ...

Research shows Jupiter’s strong gravitational pull may have protected Earth by keeping its orbit steady and preventing it from drifting toward the Sun.

The cosmic object 3I/ATLAS has sparked intense interest since it entered our solar system. A key question among scientists is whether this interstellar object has a tail.

Many scientists call Jupiter the architect of the solar system because its immense gravity influenced the orbits of other ...

Material around Chiron, a small icy world in the far reaches of the solar system, may be taking shape into a ring system of ...