596 - February 2004
Early Days in the Earth-Moon System

590 - March 2003
Birthing the Moon

555 - March 2002
Basin-Forming Collision on the Early Moon

546 - June 2001
The Cometary Bombardment - Earth in the Early Days

507 - July 1999
As the Moon Formed

506A - July 1999
Contact - The Collision that Created the Moon

506 - July 1999
Contact - The Collision that Created the Moon

460 - October 1996
A Fine Day (70 Million Years Ago)

447 - June 1996
Five Hours After the Impact that Formed the Moon

397 - June 1994
When the Moon was Very Young

333 - May 1991
Half-Grown Earth

332 - May 1991
KT Impact Crater: 1000 Years After Beginning of Tertiary

331 - May 1991
Earth Embryo

329 - February 1991
Early Earth from Early Moon

328 - February 1991
One Month After End of Cretaceous

300 - September 1989
Collision that Formed the Moon

230A
?????

191 - March 1983
Sixty Seconds after Impact of 10km Asteroid

190B - March and June 1983
End of Cretaceous: One Second Before Impact, with 10km Diameter Asteroid

190A - March 1983
End of Cretaceous: Five Seconds Before Impact

72 - May 1978
Collision of Planetesimal and Earth