Astronomers have captured a new image of two spiral galaxies locked in the early stages of a collision and merger. The Gemini North telescope observation shows the Butterfly galaxies, NGC 4568 and NGC ...

Artistic illustration of how the Milky Way’s disc may have shifted by more than 90 degrees. The faint outline shows its possible former orientation, while the surrounding stellar halo preserves clues ...

The Milky Way may have undergone a dramatic change in orientation during its history, according to new research that helps ...

Mysterious high-speed "bullets"—clumps of possibly oxygen-rich gas traveling at up to 20 million miles per hour—have been ...

The future looks bright for these companies, but that doesn't make them automatic buys right now.

Seven years after The Big Bang Theory ended, the franchise expands with a new sci-fi spin-off this week. Get all the details ...