Searching with Twitter
A particularly useful feature is the Search box in Twitter. Enter a term and all recent Tweets that include that term will be displayed.
This search for Geminids (a meteor shower that should be evident in mid-
Whilst a traditional internet search would provide good information about what Geminids may be and links to sites about them, Twitter provides immediate links to others who are interested in them and, if the search were conducted at the time when they might be visible, it is likely that photos taken by people would be included too.