A sonification of the Milky Way galaxy's core has been turned into sheet music. Find out how it was done. Credit: NASA/CXC/A. Jubett ...

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

Astronomers using the Chandra X-ray Telescope have discovered an "exhaust vent attached to a “chimney” of hot gas blowing ...

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 ...

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