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Scientists discover earth-like planet
Vocabulary
dwarf star
type of star similar to our sun
light-years
units for measuring long distances in space (how far light travels in a year)
constellation
group of stars that form a shape in the sky
on paper
in theory
mass
size or weight
rocky surface
ground covered in rocks
shirt-sleeve weather
warm weather where a sweater or coat is not needed
hunting
searching
detected
discovered or noticed
tell-tale signs
obvious clues