Tonight’s (April 7) full moon is special because it occurs when the moon is close to perigee, the point in its orbit where it is closest to Earth.1,2...
On December 21 about an hour before sunset, the planets Jupiter and Saturn will appear very close together low in the western sky in a celestial event...
The InSight robotic lander found evidence in the interior of Mars for the existence of an active giant mantle plume, a large blob of molten rock that...