Graphing variables is a critical skill in science. If something depends on something else – like the speed of sounds depends on air density, or the surface gravity of an object depends on its size – ...

The film discusses the Sun, our nearest star, detailing how astronomers study it through solar observatories. It explains the Sun's characteristics, including its size, temperature, and composition, ...

Our Sun is doomed. Billions of years from now, the Sun will deplete its hydrogen fuel and swell to a red giant before becoming a white dwarf. It’s a well-known story, and one astronomer has understood ...

Phil explains stars and how they can be categorized using their spectra. Today Phil's explaining the stars and how they can be categorized using their spectra. Together with their distance, this ...

IT has been suggested several times 1 that the flare activity observed in flash and U V Ceti stars is of a nature similar to that of solar flares. In this communication I shall adhere to this point of ...

Discover the Hertzsprung-Russell diagram, a key tool graphing the brightness of stars against color in astronomy. That's really funny, and I wish I had thought of it. The vertical axis is fame, as ...