This article was updated Feb. 28, 2023. It was originally published March 1, 2000. Planetary gears can supply high levels of torque and high-speed reduction. They are also relatively compact ...

A planetary alignment goes down, up high, when more than two planets align in the sky. If three planets align, it’s known as a mini-planetary alignment; ...

A new investigation into old Kepler data has revealed that a planetary system once thought to house zero planets actually has ...

With no Moon in the sky, we're centering on M15, which stands 60° high in the southern sky around 3:30 A.M. local daylight ...

From his backyard in Arizona, astrophotographer Andrew McCarthy has captured stunning photos of the celestial objects high above us. His recent photo of the planetary parade has hundreds of thousands ...

Packing a compact design, along with high torque and low-speed outputs, the new SEW PPK and SEW P2.e planetary gear units from SEW-EURODRIVE offer new capabilities in continuous heavy duty ...

Get ready skywatchers, another astronomical event will take place on June 3. A planetary alignment, or a "planet parade" according to the internet, where we'll see six planets – Jupiter, Mercury ...

Asteroid update, a planetary alignment and a winter warm-up in the forecast for Boston 11:08. We have a "Great Planetary Alignment" coming up, and if the weather cooperates, night sky watchers in ...

Limits on High-Frequency Gravitational Waves in Planetary Magnetospheres. Physical Review Letters , 2024; 132 (13) DOI: 10.1103/PhysRevLett.132.131402 Morgan Hollis.