Space Norway, the European satellite operator, has signed an agreement with Starlink by SpaceX to provide Low Earth Orbit ...

Spacecraft burn tons of fuel and leave behind debris—but a clever technique called aerobraking could fix both problems.

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

A recently discovered celestial body is rewriting our knowledge of the Kuiper Belt and maybe challenging the existence of the ...

An aerospace engineer explains why NASA, Space Force and other agencies are using or testing aerobraking for more ...

Abstract: Low-inclined elliptical orbits are recommended for geosynchronous synthetic aperture radar (GEO SAR) to map the regions of interest at middle latitudes. However, the radius variation of such ...

Scientists from Helsinki, Durham and Toulouse universities used data from NASA's Hubble and the European Space Agency's Gaia ...

Abstract: An optimal guaranteed cost control strategy for autonomous rendezvous operations in a targeted elliptical orbit is presented in this paper. The relative motion equations described by linear ...

Simulations show that the stars’ tug could send Mercury, Venus or Mars crashing into Earth — or let Jupiter eject our world from the solar system.

ABSTRACT: This paper investigates the chaotic behavior of an electrodynamic tethered satellite system (ETSS) orbiting Earth in an inclined elliptical orbit. The system is modelled using a dumbbell ...