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  2. Low Earth orbit - Wikipedia

    en.wikipedia.org/wiki/Low_Earth_orbit

    A view from the International Space Station in a low Earth orbit (LEO) at about 400 km (250 mi), with yellow-green airglow visible at Earth's horizon, where roughly at an altitude of 100 km (62 mi) the boundary between Earth and outer space lies and flying speeds reach orbital velocities. A low Earth orbit (LEO) is an orbit around Earth with a ...

  3. Very low Earth orbit - Wikipedia

    en.wikipedia.org/wiki/Very_low_Earth_orbit

    Very low Earth orbit is a range of orbital altitudes below 400 km ... (AO), a highly reactive form of oxygen that corrodes most substances quickly. [20] ...

  4. Outer space - Wikipedia

    en.wikipedia.org/wiki/Outer_space

    Smells produced returning from low Earth orbit extravehicular activity have a burned/metallic odor, similar to the scent of arc welding fumes, resulting from oxygen in low Earth orbit around the ISS, which clings to suits and equipment.

  5. Chinese rocket breaks apart in low-Earth orbit, creating a ...

    www.aol.com/chinese-rocket-breaks-apart-low...

    Slingshot’s Horus sensor systems, which provide satellite tracking in low-Earth orbit, “detected a series of bright, unexpected objects moving along the same orbital path as the rocket body ...

  6. Propulsive fluid accumulator - Wikipedia

    en.wikipedia.org/wiki/Propulsive_fluid_accumulator

    Several inlets (e. g. conical as in AIEE 10 Aug 1960 San Diego meeting, or funnel) and cryopumps were studied for orbital air collection. The work slowed down in late 1961 although much progress was made in later years on such items as a solar-powered PROFAC. There are, however, safety concerns with placing a nuclear reactor in low Earth orbit.

  7. Energy density Extended Reference Table - Wikipedia

    en.wikipedia.org/wiki/Energy_density_Extended...

    Specific orbital energy of Low Earth orbit (approximate) 33.0: Beryllium + Oxygen: 23.9 [3] Lithium + Fluorine: 23.75 [citation needed] Octaazacubane potential explosive: 22.9 [4] Hydrogen + Oxygen: 13.4 [5] Gasoline + Oxygen –> Derived from Gasoline: 13.3 [citation needed] Dinitroacetylene explosive - computed [citation needed] 9.8 ...

  8. Super Low Altitude Test Satellite - Wikipedia

    en.wikipedia.org/wiki/Super_Low_Altitude_Test...

    Super Low Altitude Test Satellite (SLATS) or Tsubame was a JAXA satellite intended to demonstrate operations in very low Earth orbit (VLEO, below 200 km), using ion engines to counteract aerodynamic drag from the Earth's atmosphere which is substantial at such lower orbital altitudes. It was launched on 23 December 2017, and decommissioned on 1 ...

  9. Orbital propellant depot - Wikipedia

    en.wikipedia.org/wiki/Orbital_propellant_depot

    Moving in low Earth orbit, at an altitude of around 120 km, Demetriades' proposed depot extracts air from the fringes of the atmosphere, compresses and cools it, and extracts liquid oxygen. The remaining nitrogen is used as propellant for a nuclear-powered magnetohydrodynamic engine, which maintains the orbit, compensating for atmospheric drag ...