Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

The latest private lunar lander is a little closer to its destination. Firefly Aerospace’s Blue Ghost fired its engines early ...

These are the best STEM toys for children of all ages. Shop editor and expert loved chemistry sets, circuit boards, ...

We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

In February 2025, all seven of our planetary neighbors will be visible from Earth. So what does such a planetary alignment ...

The close encounter was "a historic first of its type for a Japanese private, commercial lunar lander," according to ispace.

Seattle satirist Maria Semple’s breakthrough novel is a flurry of contemporary, epistolary wit. Passive aggressive e-mail ...

Looking up at the moon in the night sky, it’s difficult to grasp just how dramatic the topography of its surface really is.

NASA’s Jet Propulsion Laboratory described the complicated maneuver that will get the Trailblazer in a position to reach lunar orbit in a release published this week. Lunar Trailblazer will separate ...

On its own, 24 kWh doesn't seem like a lot of power. The problem is that we will need a lot of kilograms. The researchers ...

The moon's orbit is elliptical, or oval-shaped, meaning as its distance from our planet changes, its apparent size changes, ...