Beyond Mars, the vastness of space challenges human imagination and technology. Learn why reaching neighboring stars with current spacecraft would take millennia, and how theoretical concepts like ...

Engineers are developing a concept for interstellar travel using a swarm of 1,000 ultra-light "laser sails." The mission aims to send these sails to Proxima b, an exoplanet 4.25 light-years away, ...

Space exploration has always been constrained by one fundamental issue: the need for fuel. Traditional rockets require vast amounts of propellant, which limits their range and the scope of their ...