Sentence:  The observed intensity of the radio emission of <WSD>Venus</WSD> is much higher than the expected thermal intensity , although the spectrum indicated by measurements at wave lengths near 3 cm and 10 cm is like that of a black body at about 600 ` K . 
Meaning of the word marked with <WSD> tags:  the second nearest planet to the sun; it is peculiar in that its rotation is slow and retrograde (in the opposite sense of the Earth and all other planets except Uranus); it is visible from Earth as an early `morning star' or an `evening star'