Speaker:  Daniel Apai, Space Telescope Science Institute

Topic:  Toward Earth's Origin: A Voyage through Astronomy,
        Meteoritics and Three Deserts

Date:  April 7, 2009

Time:  8 PM

Place:  Space Telescope Science Institute (STScI) Auditorium

Price:  Free admission and free parking

Phone:  410-338-4700

Internet:  http://hubblesite.org/about_us/public-talks.shtml

How do planets like Earth and Jupiter form? The best
telescopes, including Hubble and Spitzer, are trying to
answer these questions by studying planetary systems in
formation around other, distant stars. However, when
considering our own planet and solar system, the search is
much closer to home, though in some inhospitable places. In
particular, observatories in the Atacama and Sonoran
deserts, as well as meteorite evidence from Antarctica, are
providing valuable clues in piecing together the story of
our planet's origins.

Lectures on a diverse selection of cosmic topics are held
the first Tuesday of every month at 8 PM in the STScI
Auditorium, located at 3700 San Martin Drive on the Homewood
campus of Johns Hopkins University. Admission is free and free
parking is available in the lot across the street.

This lecture will be webcast live. The recorded webcast will
also be available for viewing online the following day. To
view the webcast, you may need to download and install
software. See the web site listed below in advance for
details.

Further information and directions are available by
calling 410-338-4700 or on the internet at:

   http://hubblesite.org/about_us/public-talks.shtml