The solar system and its planets seem like a familiar place. Yet scientists now think they've detected something huge lurking in the far reaches of the system we call home. Could it be that a missing, giant ninth planet orbits our sun in the dark reaches of space?

Scientists in the UK, Italy and the United States hunt for so-called dark matter and dark energy.

Stunning CGI animation and scientific missions explore the hidden secrets surrounding the origin and destiny of the universe, stripping planets, moons and galaxies layer by layer.

Scientists explore the fabric of the cosmos, using revolutionary new telescopes and computers to go back in time to the Big Bang.

More than 20 solar storms a day can occur on the surface of the sun. These energy surges can cause real problems down on Earth.

Supermassive black holes aren't just spinning at the center of galaxies. They may actually be creating galaxies.