| The astronomers realised that a normal red supergiant alone could not have given rise to such a weird supernova. |
| This will enable astronomers to probe the gaseous component of the early Universe to study the first stars, galaxies, and quasars. |
| Another Jovian moon, Io, surprised astronomers by indications of volcanic activity. |
| The astronomers speculate that quasars were ignited as blackholes grew by swallowing large quantities of cold, dense gas. |
| Radio astronomers found pulsars, quasars, and massive molecular clouds dotting the celestial landscape. |
| In the early 18th century, the English mathematician Roger Cotes computed weighted averages of measurements made by different astronomers. |
