So, it came as a shock to many people when, in 1781, it was announced that a seventh planet, the first to be discovered since ...

NASA’s James Webb Space Telescope has produced the first vertical map of Uranus’s ionosphere, giving scientists a ...

Starship’s heavy lift capacity, in orbit refueling, and potential aerobraking role could significantly accelerate a long-awaited mission to Uranus.

Sky This Week is brought to you in part by Celestron. Friday, March 13Look north this evening a couple hours after sunset and you'll easily spot the large shape of the Big Dipper as it sits ...

Uranus spins on its side, creating a wild magnetosphere. Unlike Earth's stable bubble, Uranus's magnetic field is lopsided ...

When it's not busy dissecting distant galaxies or creating dark matter maps, the James Webb Space Telescope is also making a name for itself closer to home. To wit, it has produced the first-ever ...

Icy moons circling the outer planets may be far more dynamic—and explosive—than they appear. New research suggests that when ...

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

A total lunar eclipse is the highlight of the month. For planetary action, Jupiter is well placed most of the night and there are many events involving its Galilean moons. Soon after sunset, ...

Could ocean worlds in the outer solar system have boiling water underneath their icy crusts? This is what a recent study published in Nature Astronomy hope | Space ...

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

New spacecraft data from Pioneer, Voyager and Juno show that Jupiter is slightly smaller and more flattened than earlier estimates, refining the planet’s measured size and shape.