Marcus Webb 
What are constellations, really? Here is the thing that reframes them completely: the stars in a constellation are almost never actually near each other. They just happen to sit along the same line of sight from Earth. Connect the dots and you get a pattern that exists only from our vantage point — move a … Read more
What is a supernova? It is what happens when a star runs out of options. In the space of a few seconds, a single star releases more energy than our Sun will emit over its entire 10-billion-year life. For a few weeks, one dying star can outshine an entire galaxy of a hundred billion stars. … Read more
When people ask how big is the sun, the honest answer is: far bigger than your intuition can picture, and big in more than one way. Its width, its mass, and its volume are three very different numbers, and each one breaks your brain a little differently. The Headline Numbers Measurement Value Compared to Earth … Read more
Most people assume a telescope’s main job is magnification. It is not — it is light collection. That one distinction explains almost everything about how do telescopes work, why big ones cost a fortune, and why the numbers printed on the box are mostly marketing. The Two Jobs Every Telescope Does Your pupil is about … Read more
What is a solar eclipse? It is the sky's best coincidence. Once or twice a year, the Moon slides exactly between Earth and the Sun and blots out the daylight for a few minutes. Daylight goes weird, the temperature drops, birds go quiet. It is worth seeing once in your life. What Is Actually Happening … Read more
Here is the single most useful thing to know about why does the moon change shape: it does not change shape at all. The Moon is always a sphere, and exactly half of it is always lit by the Sun. What changes is how much of that lit half we happen to see from where … Read more
Ask people how far is the moon and you will usually hear “about a quarter of a million miles.” That is close enough for a quiz show, but the honest answer is more interesting: the Moon never sits still, the gap is growing, and for most of human history nobody had a clue how to … Read more
Quantum entanglement has been hijacked. Search for it and you’ll find a lot about manifestation, healing, and “the universe is connected, man.” Almost none of that has anything to do with the physics. So here’s quantum entanglement explained straight: it’s real, it’s strange, and it does not let you send a message, heal anything, or … Read more
Here’s a fact that breaks the most common explanation: Earth is closest to the Sun in early January. About 5 million kilometres closer than in July. So if distance drove the seasons, January would be the hottest month in North America and Europe. It isn’t. Which means the “we’re closer to the Sun in summer” … Read more
The question every homeschool parent asks at some point, usually at 11pm: is what we’re doing actually enough? It’s a fair worry. A homeschool science curriculum has no inspector checking it, and the stakes feel high once high school credits enter the picture. Let’s make it concrete instead of anxious. What “Enough” Actually Means For … Read more