Earth’s tilt is what causes the seasons; in the summer, when our planet’s pole is tipped toward the sun, the days are longer, ...

A private lunar lander from Japan is closing in on the moon, aiming for a touchdown in the unexplored far north with a mini ...

Mathematical evidence indicates that our universe is flat, but it could be infinitely big, as well. You can figure out if an ...

North wasn’t always “up” on world maps. North doesn't always mean "up" when it comes to geophysics. Scientists have known for ...