| 2017-04-09 | Study of the heavens: Abbr. |
| 2016-11-09 | "Cosmos" subj. |
| 2015-04-14 | Sagan's specialty: Abbr. |
| 2013-12-15 | Subj. for Galileo |
| 2013-03-31 | Observatory subj. |
| 2013-01-16 | Sci. branch |
| 2012-11-29 | Sci. major |
| 2012-07-13 | Physics dept. offering |
| 2012-04-19 | Stellar start? |
| 2012-01-10 | Space science: Abbr. |
| 2010-09-12 | Galaxy sci. |
| 2010-09-02 | College sci. class |
| 2010-05-23 | Observatory subj. |
| 2009-11-26 | Observatory subj. |
| 2009-02-05 | Field in which things are looking up?: Abbr. |
| 2008-08-24 | Study of the heavens: Abbr. |
| 2007-08-23 | NASA subj. |
| 2007-02-18 | Space: Prefix |
| 2007-01-28 | Observatory observer: Abbr. |
| 2007-01-27 | Heavenly field?: Abbr. |
| 2006-07-18 | Sci. of the heavens |
| 2006-02-19 | Carl Sagan's subj. |
| 2005-09-17 | Science class: Abbr. |
| 2002-02-10 | Star sci. |
| 2002-01-14 | Study of the stars: Abbr. |
| 2000-05-20 | One of the hard sciences: Abbr. |