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The seasons, the phases of the Moon and the order of the sky: articles that help you understand Earth's place in space.
NewestAstronomy
A light-year is not a length of time but a unit of distance: the path light covers in a year, about 9.46 trillion kilometres. We work the sum out step by step, show when the light of the Sun and Sirius set off, and explain why looking at the sky means looking into the past.
Kuazara Bilim Ekibi5 min read
Why does the Moon change shape every night? We show that the phases come from our viewing angle, not Earth's shadow, and explain the order of crescent, quarter and full moon and moonrise times with a simple experiment.
10 min read
Is summer hot because we are closer to the Sun? No. The real cause of the seasons is Earth's axial tilt. We explain the angle of sunlight, day length and the common misconception with examples.
10 min read