A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

Earth" planet found outside of our solar system could have conditions suitable for life, according to experts at the University of Oxford.

This Valentine's Day, why not make your kid's holiday extra special with printable cards that they can design themselves?

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...