The picture-perfect launch of twin Escapade orbiters bound for Mars presages a fantastical new age in exploring the planets, ...

NATO is weighing a stronger and more assertive response to what it calls an increase in hybrid attacks by Russia. These ...

For seven years, a puzzling signal beneath the Martian south pole has divided planetary scientists over whether a hidden lake ...

Results of a new study show that patients with major depressive order who have not been helped by antidepressants could benefit from short-term use of nitrous oxide, researchers announced Sunday.