NASA is tracking a near-Earth asteroid called 2026 BJ8 that is moving through space at around 50,000 kmph and is roughly the size of an airplane. Although its speed and relatively close approach to ...

Every year in early January, Earth reaches the closest point in its orbit to the Sun, a moment astronomers call perihelion. We are slightly nearer to our star and receiving more solar energy than we ...

Earth’s orbit around the Sun isn’t a perfect circle—it’s slightly elliptical. Each year, around July 2 or 3, Earth reaches its farthest point from the Sun, known as aphelion. Around January 2 or 3, ...