3 087 mots et expressions · 21 thèmes
unwanted artificial light that brightens the night sky and interferes with seeing celestial objects
a unit of distance equal to how far light travels in a vacuum in one year
relating to the Moon
an event in which the Moon passes partly or wholly through Earth's shadow
the apparent shape of the sunlit part of the Moon seen from Earth
a streak of light produced when a small object from space enters an atmosphere at high speed
a piece of material from space that survives passage through an atmosphere and reaches the ground
the ground-based team or center that monitors and directs a space mission
a facility equipped with instruments for observing objects and events in space
relating to an orbit or to motion along an orbit
relating to planets or their formation and behavior
to pass back from space into a planet's atmosphere
a mobile robotic vehicle used to explore the surface of a planet or moon
an event in which the Moon passes between Earth and the Sun and blocks part or all of the Sun from view
an uncrewed spacecraft sent to collect scientific information about space or celestial objects
a telescope placed in space to observe distant objects from outside Earth's atmosphere
to move or work outside a spacecraft while in space
all of space and time and the matter and energy within them
a long structural member that carries loads acting across its length, often by resisting bending
the temperature at which a liquid's vapor pressure equals the pressure acting on it, allowing boiling
likely to crack or break with little bending or permanent deformation
a layer applied to a surface to change its appearance, protection, or functional properties
a structural member, usually upright, that carries loads mainly along its length in compression
to change from a gas or vapor into a liquid
to allow electric current to pass through a material
a material through which electric charge can move relatively easily
the mass of a material divided by the volume it occupies
able to return toward its original shape after a deforming force is removed, within its elastic limits
a physical property of matter that can be positive or negative and produces electrical interactions
an arrangement of connected electrical components that provides a path for electric current
the ground-based team or center that monitors and directs a space mission
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