Earth and its neighbors orbit the sun on a relatively flat plane. But what's below this plane, and is anythign below the ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

New simulations suggest that the Antikythera Mechanism may have jammed within months, as small errors in the spacing.

Curious Kids is a series for children of all ages. If you have a question you'd like an expert to answer, send it to ...

The International Space Station is about to feel a lot emptier. After a medical emergency cut short SpaceX’s Crew-11 mission, ...

In the bigger picture, “down” could be defined as being below the plane of the solar system, which is known as the ecliptic.

Jupiter’s most famous storm is slimming down, spinning up and behaving in ways that challenge what scientists thought they ...

GUIYANG - Through studying the observation data of China's gigantic radio telescope located in the country's southwestern Guizhou province, an international research team has uncovered compelling new ...

Understanding how water moves through the Earth system is fundamental to predicting climate impacts and ensuring sustainable ...

Nestled in the South Pacific Ocean, some 6,000 people live on the most isolated, inhabited island in the world: Rapa Nui.

Scientists have pulled back the curtain on one of the most extreme solar regions seen in decades, tracking it almost nonstop ...

A research team from the Beijing Institute of Technology (BIT) and Yinhe Hangtian has achieved a major advance in orbit ...