Quantum superposition is a phenomenon in which a tiny particle can be in two states at the same time — but only if it is not ...

Would you have a go at playing table football against a robot or feeling electricity in your body? At the Luxembourg Science ...

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short ...

Katy Perry, the pop star whose lengthy catalogue includes a few songs that reference aliens and shooting across the sky.