Understanding the Search for Alien Life
A clear explainer on how scientists search for alien life through astrobiology, Mars missions, icy moons, exoplanet atmospheres, biosignatures and technosignatures.
Science, health, medicine, research, climate and the environment.
A clear explainer on how scientists search for alien life through astrobiology, Mars missions, icy moons, exoplanet atmospheres, biosignatures and technosignatures.
A clear explainer on how the solar system formed from a collapsing cloud of gas and dust, creating the Sun, planets, moons, asteroids and comets.
A simple explanation of Moon phases, lunar orbit, sunlight, waxing and waning, new Moon, full Moon and why phases are not caused by Earth’s shadow.
A clear explainer on how the Moon controls tides through gravity, why there are usually two high tides and two low tides, and why the Sun also matters.
A simple guide to comets and asteroids, how they differ, where they come from, why they matter, and what they teach us about the early solar system.
A clear explainer on gravity, how it forms planets, stars, galaxies and black holes, and why it governs structure across the universe.
A simple explainer on Einstein relativity, including special relativity, general relativity, spacetime, time dilation, gravity and why the theory matters.
A clear explainer on how light travels through space, why it does not need air, what photons are, and why distant light lets us look into the past.
A simple explainer on the speed of light, why it is a universal constant, how fast it is, and why it matters for relativity, astronomy and technology.
A simple explainer on the electromagnetic spectrum, including radio waves, microwaves, infrared, visible light, ultraviolet, X rays and gamma rays.
A clear explainer on how radio waves carry information, how antennas transmit and receive signals, and how modulation makes wireless communication possible.
A clear, evergreen explainer on the role of minerals in the body: bones, muscles, nerves, fluid balance, oxygen transport, deficiency and excess risks.