The universe is vast and our journey to understand it has just begun.

Earth serves as our fragile and precious home. As far as scientists are aware, it's the only astronomical object known to harbor life. The Earth is at least 4.54 billion years old, and in that ...

A handful of planets in the solar system are expected to line up in the night sky for a few days in January 2025. Here's when ...

Brr! But in sunlight near Earth, temperatures can swing to a boiling 250 degrees Fahrenheit. That's why astronauts wear reflective white spacesuits. Unimpeded, light can move at 299,792,458 meters ...

A collection of down-to-Earth facts about our planet and its place in the solar system. This collection introduces the Sun as the main source of light and heat on Earth. It explains that the Earth ...

Rainforests in these regions cover just 2% of Earth's total surface area and yet house half of the world's plant and animal species. Deforestation is the clearing of forests. Most deforestation ...