Titan, the second largest moon in the Solar System—indeed, it is even larger than the planet Mercury—draws attention not only ...

Earth is the only planet in our solar system with a single moon, making it a rare phenomenon for a planet of its kind.

When the Artemis program returns humans to the lunar surface, astronauts may want to make sure they’re up to date on their ...

Scientists think Uranus’s moon Ariel once had a hidden ocean beneath its icy shell. The moon’s orbit stretched enough to ...

Normal gases, like the air you breathe on Earth, are made up of atoms bouncing around. Atoms consist of a positively charged bundle of particles called the nucleus and negatively charged particles ...

A team of scientists at the Southwest Research Institute, using photography commissioned from NASA's James Webb Space Telescope, have discovered a previously unknown moon in our solar system that's in ...

Webb Telescope spots a carbon-rich disk around a distant planet, CT Cha b, offering rare clues to how moons may form.

About 4. 6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity.

NASA is set to launch three spacecrafts Tuesday with the goal of unlocking the mysteries of solar weather at the edge of our solar system.

This discovery was made by two of NASA’s most celebrated telescopes. This illustration provided by Dan Durda shows the exoplanet Kepler-1625b with a hypothesized moon. On Thursday, Oct. 4, 2018, two ...

Approximately 4.5 billion years ago, a cold cloud of gas and dust buried deep in one of the Milky Way galaxy’s spiral arms started to collapse. From there, gravity worked its magic. The cloud began to ...