A New Satellite Is Going to Try to Maintain Low Earth Orbit Without Any Propellant

Staying afloat in space can be deceptively hard.  Just ask the characters from Gravity, or any number of the hundreds of small satellites that fall into the atmosphere in a given year.  Any object placed in low Earth orbit (LEO) must constantly fight against the drag caused by the small number of air molecules that … Continue reading A New Satellite Is Going to Try to Maintain Low Earth Orbit Without Any Propellant