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 – ...

Imagine you are being given an important assignment by a taskmaster with a strange sense of humor. Your job is to study a forest, but you can only work according to a rather bizarre set of rules. For ...

A: To determine the age of a globular cluster, astronomers rely on the assumption that all the stars in the cluster formed at the same time and are the same distance from us. But the stars don’t all ...

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 ...

NASA’s Hubble Space Telescope has made a significant breakthrough in the field of astronomy by refining the age of the ...

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 ...