The moving white dots you see in the night sky are most likely satellites. Satellites are man-made objects that orbit the Earth and are used for various purposes, such as communication, weather monitoring, navigation, and scientific research.
These satellites reflect sunlight as they orbit the Earth, which makes them visible from the ground as moving points of light. They often appear as steady, white dots moving across the sky, distinguishable from stars by their steady motion and lack of twinkling.
Satellites can be seen throughout the night, but they are most visible during certain times. The best viewing conditions occur shortly after sunset or before sunrise when the sky is dark, but the Sun's rays still illuminate the satellites at high altitudes. Additionally, some satellites are equipped with reflective surfaces, known as solar panels or antennas, which can make them appear brighter and more easily visible.
It's worth noting that there are also other objects that can be seen moving across the night sky, such as aircraft and the International Space Station (ISS). Aircraft are usually characterized by blinking lights and different flight paths, while the ISS appears as a bright, fast-moving object, often brighter than any star, and may even pass overhead multiple times in a single night.
If you are interested in observing satellites or other objects in the night sky, there are websites and smartphone applications that can provide information on when and where to look for specific satellites or even help identify them in real-time based on your location.