Expert Voices Paul Sutter: Explaining astrophysics and astronomy

James Clerk Maxwell is the scientist responsible for explaining the forces behind the radio in your car, the magnets on your fridge, the heat of a warm summer day and the charge on a battery.

If you were to place a galaxy behind the black hole and then look off to the side, you'd see a distorted image of the galaxy. Here's why.

A new theory suggests dark matter may have come from quantum bags that got squished together in the early universe.

What are the chances that a primordial black hole forged in the earliest moments of the universe will come wandering toward Earth?

Certain weird gravity conditions would make it possible to travel through a wormhole and back.

Asteroids are packed with gold and other valuable resources. And the best way to harvest those metals may be to bring space rocks to Earth.

If we ever want to take pictures of an Earth-like exoplanet, we need to think bigger than the biggest telescopes on Earth.

On Aug. 4, 2008, the Fermi Gamma-ray Space Telescope began full science operations, scanning the entire sky through the highest-energy form of light.

The growing problem of space junk poses a risk to future space missions, but the solution isn't going to be easy.