When a star spins hyper-fast on itself, the plasma it contains swirls intensely, somewhat like water in a washing machine on high spin. This movement...
The gravity of a planet is basically its ability to hold onto everything that passes nearby. When the planet is too small, its gravitational force...
Ancient civilizations observed the phases of the Moon directly without any special instruments. They simply had to look up and follow its cycle of about...
The Sun has always been perceived as the main source of life by ancient civilizations: simply because without it, there is no heat, no light, and therefore...
Stars are born from massive clouds of gas and dust called nebulae. Under the influence of gravity, these clouds contract, heat up, and trigger nuclear...
The ancient builders had a perfect understanding of the celestial cycles, carefully observing the stars to track their regular movements and predict significant phenomena. The...
Stars emit X-rays when their heated material reaches very high temperatures, typically several million degrees. At these temperatures, electrons are stripped from atoms: the gas...
Historically, the term white dwarf dates back to the early 20th century, when astronomers discovered very small but very bright stars of white color. They...
In winter, the marked contrast between the very cold air near the ground and the warmer layers of air higher up enhances atmospheric turbulence. The...
Tromsø is located in the north of Norway, nearly 350 kilometers north of the Arctic Circle. This very northern location makes it one of the...