Saturday morning the Earth will be as close as it gets to the sun during its annual tour around the fiery orb.
The planet's distance from the sun varies because its orbit is a slightly flattened circle.
On Saturday morning, the Earth will be about 3.1 million miles closer to the sun than it is when it's at its farthest point.
It won't be obvious, but the sun will actually appear about 3 percent larger than it did about six months ago when it was at its farthest-away point.
At its closest, the Earth is about 91.4 million miles from the sun; at its farthest, it's about 94.5 million miles.
This year, the Earth will be its farthest from the Sun on July 3.
Astronomers term the closest point the perihelion and the farthest point the aphelion.
Source: National Weather Service/Cheyenne, Wyo.