In recent years, electric helicopters are applied for many tasks due to their characteristics, and contact tasks with objects are also is expected. Although accurate angular velocity control of a ...

This article presents the design of a safe learning attitude controller, based on the Koopman operator (KO), for rest-to-rest spacecraft attitude reorientation ...

WATCH: A ‘fireball’ in the sky — how a suspected meteor fragment burned into a home in US The event drew attention on social media, with videos and eyewitness accounts showing a bright trail of smoke ...

‘Monitoring from ground to sky’: Ahead of its 44th Rath Yatra, Vadodara city turns into fortress The Rath Yatra, dedicated to Lord Jagannath, will start from the railway station and conclude at the ...