With an assist from the NEID spectrograph, a team of astronomers have confirmed the existence of exoplanet Gaia-4b—one of the ...

The science and mathematics behind what keeps the ISS in orbit goes all the way back to ... The size and shape of this curve depends upon the velocity of the cannonball and the amount of air ...

But to travel from low-Earth orbit (LEO) to farther orbits—or even the Moon—requires a different kind of ion thruster capable ...

Each orbit the planet begins out beyond the habitable ... These instruments measure what's termed 'radial velocity' — the amount by which a star wobbles around the center of mass that it shares ...

A recently launched satellite is stuck in space after failing to fire its thrusters, preventing it from reaching its operational orbit.