At the ragged frontier where the Sun’s influence gives way to the galaxy, a decades‑old spacecraft has stumbled into a furnace that theory did not predict. As Voyager pushes through the heliopause, ...

The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations may have given them a first glimpse. When you ...

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...

Your excellent question affords us the opportunity to distinguish between near-certain astronomical predictions and those which are far less so. Astronomers predict that our home galaxy and the ...

The Great Red Spot is a gigantic storm, twice the size of Earth, that has swirled for centuries. It’s just one of many on 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 ...