Class begins with a problem on transits and learning what
information astronomers obtain through observing them. For
example, radii of stars can be estimated. Furthermore, applying
the Doppler shift method, one can find the mass of a star.
Finally, a star's density can be calculated. A second method for
identifying planets around stars is introduced: the astrometry
method. The method allows for an extremely accurate assessment
of a star's precise position in the sky. Special features of the
astrometry method are discussed and a number of problems are
solved. A short summary is given on the three methods
astronomers use to identify exoplanets. Class ends with an
overview of upcoming space missions and the hope of detecting
the presence of biological activity on other planet. This course
focuses on three particularly interesting areas of astronomy
that are advancing very rapidly: Extra-Solar Planets, Black
Holes, and Dark Energy. Particular attention is paid to current
projects that promise to improve our under