· rockets
· Rovers (US exploration of Mars)
radiorabbitring (jewelry)roperosesrugs
a space word for R could be Rhea the moon of saturn.
telescope (Hubble)
Earth!
Words that start with R and end with R:racerradarradiatorrafterrancherrancorratherrazorreaderreaperreappearrearreceiverrecorderrecoverregisterregularregulatorreindeerrelieverremainderrememberreminderremoverrenterreoccurrepairreporterresistorresponderretailerretainerretrieverrevolverriderrigorringerriserriverroarrobberrockerrollerrooferroosterrosterrubberrulerrumorrunner
· Rovers (US exploration of Mars)
radiorabbitring (jewelry)roperosesrugs
a space word for R could be Rhea the moon of saturn.
telescope (Hubble)
gravity
To start off, there is indeed gravity in space. Objects in orbit only seem weightless because they are already in freefall. Gravity is the main forces that affects objects in space and can be used to change a trajectory. You can also change your speed and direction in space by firing rockets.
Objects in Space was created on 2002-12-13.
· rabbit · rake · receipt · rifle · ring · rock · rope · rose
Because they are closer to the objects.
Is your question "what do you weigh different objects on in space...", or "why would you attempt to weigh an object in space"...?
they use light-years to determine the space between objects in space
There are various objects that can be responsible for radio emissions in space. These objects are referred to as astronomical radio sources.