There are also discussions related to the making of telescopes and barometers, as well as articles related to the discovery of a "permanent Spott" on Jupiter, such as this one from the issue for "Munday, March 6. 1664/5:"
A Spot in one of the Belts of Jupiter.
The Ingenious Mr. Hook did, some moneths since, intimate to a friend of his, that he had, with an excellent twelve foot Telescope, observed, some days before, he than spoke of it, (videl. on the ninth of May, 1664, about 9 of the clock at night) a small Spot in the biggest of the 3 obscurer Belts of Jupiter, and that, observing it from time to time, he found, that within 2 hours after, the said Spot had moved from East to West, about half the length of the Diameter of Jupiter.
The Ingenious Mr. Hook indeed.