The sounding rockets released vapor tracers and pressure sensors at different altitudes across central and northern Alaska ...

A crew of four international spacefarers on a private mission will soon seek to become the first humans to travel over Earth's poles.

Using Hubble's Wide Field Camera 3 instrument, astronomers captured this recent up-close view of the SMC, full of twinkling stars. The image features a small region of the SMC near the center of NGC ...