Pegasus, a constellation in the Northern Hemisphere. It is clearly visible in the autumn during the early evening. Pegasus lies between the constellations Andromeda and Aquarius. It contains part of the Great Square, a figure composed of four bright stars. The brightest star in the Great Square. Alpheratz, was originally part of Pegasus, but is now included in Andromeda.
Hundred of meteors fly across the sky every night, but only a few make it to Earth. Meteors are best known for the brilliant streaks of light they make as they burn up in the atmosphere. Learn about 10 memorable meteor crashes that left an impression.
Scientists have discovered the existence of water on both our moon and on Mars. Both findings are significant, but what do they mean? Can we use this information to our advantage for space exploration?