A good chunk of cosmology is riding on whether dark matter exists or not. But what makes us so certain that dark matter is ...

First and perhaps most perplexingly, researchers remain unsure about what exactly dark matter is. Originally, some scientists ...

Dark matter makes up most of the mass in galaxies and galaxy clusters. In fact, scientists estimate that ordinary matter makes up only about 5% of the universe, while dark matter makes up about 27%.

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Imagine an epic video game with your favorite hero as a character. Another character ...

Scientists know that the elusive substance called dark matter makes up most of all the matter in the universe, but have never ...

When an invisible entity making up 85% of the universe's mass stumps the greatest scientific minds of our time, awe is an ...

Dark matter doesn’t emit, absorb, or reflect light. It’s invisible but supposedly makes up 85% of the universe’s mass. Because it’s so abundant, astronomers believe it should explain many unsolved ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...