During the autumnal equinox, the Earth’s axis and its orbit line up so that both hemispheres get an equal amount of sunlight.

Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, said Renu Malhotra, a planetary scientist at the University of Arizona who has ...

The Ship coasted in orbit, successfully opening the payload bay door and releasing ... it remains unknown how that design will truly work. While SpaceX does not intentionally plan for failures, it ...