Happy Perihelion Day!
Believe it or not, today is the day of the year that Earth is closest to the sun. (In the northern hemisphere still have winter because our north rotational axis is pointed away from the sun.)
Today, we are 147,098,074 km from the sun; in 6 months we will be at aphelion (furthest away) at 152,097,701 km. Maybe not a huge difference, but it's still about 5 million kilometers.