Google released a new logo for this festival occasion (Makar Sankranti).
Makar Sankranti or Sankranti or Sankranthi marks the transition of the Sun into Makara rashi (Capricorn) on its celestial path. Traditionally, this has been one of many harvest days in India. Makar Sankranti is one of the most auspicious occasions for the Hindus, and is celebrated in almost all parts of the country in myriad cultural forms, with great devotion, fervour & gaiety. It is a harvest festival. Makar Sankranti is perhaps the only Indian festival whose date always falls on the same day every year i.e. the 14th of January.