Planetary systems such as our solar system take hundreds of millions of years to evolve. Since humanity has only existed for a sliver of that time, astronomers have only observed planetary systems at ...

The largest moon of Saturn is bigger than Mercury, yet for all its conspicuousness, scientists don't know exactly how it came ...

The term “planet parade” is used as an informal way to refer to planets being able to be seen simultaneously al ...

Six planets will appear close together after sunset in a rare planetary parade. Here is how and when to see this beautiful ...

NASA is adding another Artemis moon mission to its schedule even before Artemis 2 has a new date for launch. Here's the latest on the program.

Jared Isaacman, the agency’s administrator, said the Artemis III mission would move to 2027 and would no longer attempt a lunar landing.

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

If our Moon suddenly vanished, Earth would already face dramatic consequences. But replacing it with entire alien worlds ...

Scientists have long know many objects floating at the solar system's out edges resemble snowmen, but the reasons why were never clear. Now a student at Michigan State University has created the first ...

Webb maps Uranus’s upper atmosphere, revealing cooling temperatures, shifting auroras, and the effects of its tilted magnetic field.

The James Webb Space Telescope delivers the 1st detailed 3D map of Uranus’s upper atmosphere, revealing dramatic temperature ...

New research using the James Webb Space Telescope offers the most detailed portrait yet of how auroras form on Uranus.