Grammy-winning pop singer Mariah Carey is trying to block porn star-turned politician Mary Carey from trademarking her similar-sounding stage name, saying that fans could get the two performers confused.

A man on death row in the United States is appealing against his murder conviction on the grounds that jurors were not allowed to smoke as they reached their verdict.

A team of astronomers says it has found evidence of the period billions of years ago when starlight first began streaming through the universe.