Abstract
The
Chandra
exposure on the Chandra Deep Field-South (CDF-S) has recently been
increased to
7 Ms, making it the most sensitive extragalactic X-ray survey by a wide
margin.
About 1050 X-ray sources have been detected, primarily distant active
galactic
nuclei (AGNs) and starburst/normal galaxies. The unmatched deep
multiwavelength
coverage for these sources allows superb follow-up investigations,
revealing
the details of supermassive black hole growth over most of cosmic time.
I will
briefly describe the sources in the 7 Ms CDF-S and some exciting first
science
results. The latter will include (1) relations between black-hole
growth and
host stellar mass; (2) constraints on supermassive black hole growth in
the
first galaxies as revealed by direct detection and stacking; and (3)
the
discovery of a representative of a new population of faint, fast X-ray
transient sources. Finally, I will discuss some future prospects for
X-ray surveys
of AGNs in the distant universe.