Add Yahoo as a preferred source to see more of our stories on Google. Could the Earth and everything on it – and even the whole universe – be a simulation running on a giant computer? OsakaWayne ...

Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

(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 ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Zeb Rocklin, Georgia Institute of Technology (THE CONVERSATION) Advertisement Article ...