Have you ever stood before a landscape so breathtaking, so ancient, that you felt the weight of millions of years pressing ...

Imagine standing on ground that has witnessed millions of years of Earth’s story unfold—where breathtaking landscapes and ...

There are plenty of celestial landmarks you can see with the naked eye, and this month, you can view Mars and four of Jupiter’s 95 moons.

A long-lost slab of Earth’s crust may be pulling away the bottom of the oldest part of North America, scientists say ...