There's a bright "star" shining in the east after dark. It's Jupiter, which is now approaching it's biggest, brightest and ...

In fact, Solar Orbiter will go where no spacecraft has gone before by moving farther and farther away from the ecliptic plane ...

The Mercury challenge: With the ecliptic—the centerline of the zodiac and plane of Earth’s orbit—making a shallow angle with ...

(The Moon's orbital plane is flattened back toward the ecliptic, at just a 5.1° inclination.) This means the Moon drifts ...

The invisible points in the sky where the moon’s path crosses the ecliptic plane are called either the north node (in the northern hemisphere) or the south node (in the southern hemisphere).

Called aerobraking, the technique allows the highly classified craft to change orbit without using propellant—and many are ...

Surely, the grainy image had to be Amelia Earhart’s long-lost plane, 16,000 feet beneath the surface of the Pacific Ocean.