A new NASA mission will capture images of Earth's invisible "halo," the faint light given off by our planet's outermost atmospheric layer, the exosphere, as it morphs and changes in response to the ...

Much as we may treasure and proclaim our independence, we actually live in a protective bubble called the heliosphere.

Every year, the moon, Earth's reliable celestial companion for 4.5 billion years, is getting 1.5 inches away. The distance to the moon is calculated by measuring the amount of time it takes for light ...

Can planets be different shapes? This video explores the fascinating world of planetary shapes, discussing how gravitational forces and other factors influence their forms. Discover the scientific ...

The bottom of the world is front and center for a partial solar eclipse next week. Antarctica, New Zealand and a sliver of ...

The gravitational force of the Moon does not act uniformly across the entire Earth; it is strongest at point A, which is the ...

▲ Wang Kechao, the popular science director of the Purple Mountain Observatory of the Chinese Academy of Sciences, introduced ...