In Pics: NASA shares breathtaking images of Earth taken from International Space Station

The first photo in the series is of Bombetoka Bay in Madagascar. Describing it, the caption read, "On the northwestern coast of Madagascar, the salty waters of the Mozambique Channel flow inland joining the freshwater outflow of the Betsiboka River, forming Bombetoka Bay...The sapphire water is tinged with pink where sediment is particularly thick, and dense vegetation adds a rich green pigment to the landscape." (Image: Instagram/NASA)

The second image was that of Richat Structure in Mauritania. The so-called Richat Structure is a geological formation in the Maur Adrar Desert in the African country of Mauritania. Although it resembles an impact crater, the Richat Structure formed when a volcanic dome hardened and gradually eroded, exposing the onion-like layers of rock. (Image: Instagram/NASA)

The third image was of the Everglades of South Florida. Florida’s Everglades National Park is not your ordinary protected area. Its unique ecosystem is also a UNESCO World Heritage Site, an International Biosphere Reserve, and a Wetland of International Importance. (Image: Instagram/NASA)

The fourth photo in the series was that of the frozen Dnieper river in Europe. A blog post by NASA said that the image was captured by European Space Agency astronaut Thomas Pesquet, from ISS on February 9, 2017. About the photo, Thomas said, "Winter landscapes are also magical from the International Space Station: this river north of Kiev reminds me of a Hokusai painting." (Image: Instagram/NASA)

Earlier, the US space agency had also shared a stunning image of the sea of dunes on Mars which has been sculpted by the wind into long striations and is surrounding Mars' northern polar cap. According to the caption, it covers an area as big as Texas. (Image: Instagram/NASA)