Earth is the third planet from the Sun and the only object in the Universe known to harbor life. According to radiometric dating and other sources of evidence, Earth formed over 4.5 billion years ago. Earth's gravity interacts with other objects in space, especially the Sun and the Moon, Earth's only natural satellite. Earth revolves around the Sun in 365.26 days, a period known as an Earth year. During this time, Earth rotates about its axis about 366.26 times.
Sea ice distribution and sea surface temperature (SST) in the North Atlantic have affected Europe's weather and climate by determining precipitation and wind patterns, and changes in temperature. Knowledge of these factors and how they will alter over the coming years is vital for society and the economy, which need accurate data for planning and decision making.