The planets of our solar system aren't randomly scattered. They all orbit in a near perfect, flat disc. The reason for this ...

Which planet is the furthest from the sun? Some may think it’s Pluto, but it’s actually Neptune. Learn more about this ice ...

ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

Did you know that there are actually two different sets of seasons, and thus two different winters, every year?

The International Space Station (ISS) has been orbiting Earth for the last quarter of a century. But it was only this week ...

Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

Our Sun, that steady burning ball of gas that has faithfully illuminated Earth for billions of years, is slowly but ...

The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to ...

The next solar eclipse will be here before you know it, but this one will be a little different. Here's what makes the 2027 ...

The brilliant moon illuminates our night sky again this week, reaching its full phase on Thursday, Dec. 4. All that extra light in the sky means that ...