Perihelion is when Earth is closest to the Sun, happening between January 2 and 4. In 2025, it will occur on January 4 at ...

The fact that Earth is at perihelion has little to do with the seasons. The difference in solar radiation received by our ...

When one of the poles points more toward the Sun than the other pole, that half of the planet gets more sunlight than the other half, and it’s summer in that hemisphere. When that pole tilts away from ...

Earth will reach its closest point to the Sun, known as Perihelion Day. This occurs every year in early January, and though ...

The Parker Solar Probe, traveling at 430,000 mph, reaches 3.8 million miles from the Sun. Scientists now wait for a signal ...

Earth's rotation on its axis creates the illusion of the sun rising in the east and setting in the west. This rotation, coupled with Earth's orbit around the sun and its axial tilt, dictates our ...

Launched into space in 2018, the Parker Solar Probe is gradually tightening its orbit around the Sun. The most significant ...

The probe - launched in 2018 to help scientists better understand the outer layer of the sun - will race past the sun at ...

Though the winter solstice brings the shortest day of the year, it also signals the gradual return of light to the Northern Hemisphere.

5, 2024 the European Space Agency's Proba-3 mission sent two spacecraft into orbit around Earth. By aligning the probes, researchers will create 6-hour-long mini eclipses, allowing the sun's ...