Reference Earth's atmosphere protects the planet and sustains life.
reference A light-year is a measurement of the distance light travels in a single Earth year, which is important for measuring the vast distances of space
We’ve tested a range of the best beginner cameras on the market, so you can take your photography to the next level.
We've rounded up the very best cameras for photography and video, making it easy for you to pick a model that suits your shooting style.
Reference Kepler's Third Law not only calculated the planetary movements in the solar system, but also helped to determine the average distance of the planet from its stars.
The James Webb Space Telescope, also known as Webb or JWST, is a high-capability space observatory designed to revolutionize astronomy.
The universe is incredibly old, incredibly large and teeming with potentially habitable planets. So why haven't we found any sign of aliens yet?
According to conspiracy theorists, the Black Knight satellite is an alien spacecraft orbiting Earth. Here's what's really going on.
Several factors make Earth unique given what scientists know about the thousands of planets discovered to date.
Reference The geocentric model is a debunked theory that the Earth is the center of the universe, with the sun and planets revolving around it.
REFERENCE Science says time travel is possible, but probably not in the way you're thinking.
Learn how Earth’s moon formed, how its orbit affects Earth’s tides, why solar and lunar eclipses happen and the history of lunar exploration.
The solar system formed about 4.5 billion years ago. Scientists have developed three models of how it happened.