Five planets are aligning across the dawn sky over the next month, in a rare treat for skywatchers. Mercury, Venus, Mars, Saturn and Jupiter will be simultaneously visible to the naked eye for the first time in more than a decade. The spectacle is visible from Wednesday until 20 February, but experts warn that Mercury will become fainter towards the end of that window. Read more
Around an hour or so before sunrise on January 20th, 2016, five planets, Mercury, Venus, Mars, Jupiter and Saturn, will appear in a line visible in the dawn sky.