Earth is now closer to the sun than at any other time of the year. Here's why our planet's axial tilt, not proximity to the ...

It seems 2025 will have a strong start, too, with a planet parade just a few weeks into the new year. A planet parade is when ...

Mars has two moons, Phobos and Deimos. Scientists still debate whether these came from asteroids that passed close into Mars' ...

Each evening, enjoy a sweeping view of four planets at once. Also look for Mars occulted by the Moon and meteors!

However, as the sun's magnetic field weakens during solar maximum, polar eruptions emerge. The storm's unusual orientation ...

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

January's sky brings a planet parade, Mars opposition, and the Quadrantid meteor shower. Enjoy Venus and Saturn's close ...

From the mysterious Planet Nine to the prospect of a "human ... humans haven't found alien life yet It was hard to look away from the sun and moon this year. But exciting observations continued ...

During the summer, the Northern Hemisphere leans into the sun, and we get more daylight and warmth — while in winter, our planet leans away from the sun, resulting in shorter days and cooler weather.

The bus-size asteroid, known as 2024 PT5, is currently 2 million miles (3.2 million kilometers) from Earth and has begun to move away from our planet as it is overcome by the sun's gravity.

All the planets in our solar system orbit around the sun. At certain points during these ... an unobstructed view of the horizon and above. Away from treelines or cityscapes is best.