What Is the Ionosphere?

What Is the Ionosphere?

The ionosphere is a special region of Earth’s upper atmosphere, located roughly between 60 and 1,000 kilometers above the surface. It is filled with charged particles (ions and electrons), created…
Astrobiology

Astrobiology

Astrobiology is the scientific field that studies the origin, evolution, distribution, and future of life in the universe. It combines knowledge from astronomy, biology, chemistry, geology, and physics to answer…
Albedo

Albedo

Albedo is a scientific term that describes how much sunlight a surface reflects compared to how much it absorbs. It plays a key role in Earth’s climate system, as different…
Blood Moon

Blood Moon

A blood moon is a striking astronomical event that occurs during a total lunar eclipse, when Earth comes directly between the Sun and the Moon. Instead of disappearing completely, the…
Why Telescopes Need to Be Cooled

Why Telescopes Need to Be Cooled

Modern telescopes are powerful instruments designed to capture faint signals from distant stars, galaxies, and other cosmic objects. To achieve high precision, many telescopes—especially those working in the infrared spectrum—must…