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

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

If you examine our solar system’s giant planets, you’ll notice right away that they’ve all got moons—a lot of moons. While ...

Six planets will be visible at once on Saturday evening, resulting in what's commonly know as the "planet parade." Here's what to know in Oklahoma.

Despite the dramatic name, these alignments aren’t exceptionally rare. The last six-planet parade occurred in January 2025, ...

Although astronomers have found thousands of exoplanets, the number of confirmed exomoons—and exorings—is still zero. But ...

On Thursday, Princeton University celebrated its leading role in NASA’s IMAP mission, highlighting how faculty and students are collaborating to study the boundary of our solar system and improve ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar ...

In the distant reaches of the solar system are many icy objects that resemble snowmen. Now, a new study reveals the simple ...

Elon Musk wants to launch a million satellites, but researchers say global warming is changing the upper atmosphere in ways that makes space junk linger.

An astronomy professor explains what exoplanets are, why he keeps looking for them and how Israel intercepts missiles “in ...