A seven-year-old's answer to a question on his maths homework has left hundreds scratching their heads. The teacher marked the boy's answer wrong however his dad thinks he's in the right.

Of particular interest to astronomers is the nebula's faint, Venn-diagram-like structure — two rings of ejected material shaped by the gravitational influence of the central stars. Scientists ...

When the greatest mathematician alive unveils a vision for the next century of research, the math world takes note ... David Hilbert presented 10 unsolved problems as ambitious guideposts for ...