来自MSN11 个月
Neptune isn't as blue as we thought it was
Neptune’s true colour is a pale greenish-blue similar to that of Uranus, contrary to popular images that show it to be a much deeper shade of blue. Read more Mysterious dark spot on Neptune seen ...
BBC11 个月
Neptune and Uranus seen in true colours for first time
Images from a space mission in the 1980s showed Neptune to be a rich blue and Uranus green. But a study has discovered that the two ice giant planets are both similar shades of greenish blue.