Michelle may refer to:

Mar or Mor (as pronounced respectively in eastern and western dialects, from Syriac: ܡܪܝ, Mār(y), written with a silent final yodh) is a title of respect in Syriac, literally meaning 'my lord'. It is given by custom to all bishops and saints. The corresponding feminine form given to women saints is Mart or Mort (Syriac: ܡܪܬܝ, Mārt(y)). The title is placed before the Christian name, as in Mar Aprem/Mor Afrem and Mart/Mort Maryam. This is the original meaning of the name Martha 'A Lady'.

The variant Maran or Moran (Syriac: ܡܪܢ, Māran), meaning 'Our Lord', is a particular title given to Jesus, either alone or in combination with other names and titles. Likewise, Martan or Mortan (Syriac: ܡܪܬܢ, Mārtan, 'Our Lady') is a title of Mary.

Occasionally, the term Maran or Moran has been used of various patriarchs and catholicoi. The Syriac Orthodox Patriarch of Antioch, the Malankara Orthodox Catholicos and the Syro-Malankara Major Archbishop Catholicos use the title Moran Mor. Sometimes the Indian bearers of this title are called Moran Mar, using a hybrid style from both Syriac dialects that reflects somewhat the history of Syrian Christians in Kerala. The Pope of Rome is referred to as Mar Papa.

Michelle Thaller (born in Waukesha, Wisconsin) is an American astronomer and research scientist. Thaller is currently the assistant director for Science Communication at NASA's Goddard Space Flight Center

From 1998 to 2009 she was a staff scientist at the Infrared Processing and Analysis Center, and later Manager of the Education and Public Outreach program for the Spitzer Space Telescope, at the California Institute of Technology.

A native of Wisconsin, Thaller attended Harvard University where she majored in astrophysics and worked on precision measurement of binary stars and received a Bachelor's degree in 1992. At Georgia State University Thaller worked on colliding winds in close massive binary systems and received a Doctor of Philosophy (PhD) in 1998.

Thaller has been featured in an episode of the National Geographic Channel documentary television series, Naked Science and has appeared on Life and Times on the Los Angeles based television station KCET. She is also a regular contributor to the online edition of the Christian Science Monitor for which she writes a monthly science column and has appeared seven times on the History Channel show, The Universe She also appears in the Science Channel's "How the Universe Works".{Season 1/Ep. 4 entitled "Extreme Stars"} Thaller also contributed to and appeared in the award-winning video podcast series IRrelevant Astronomy.