The Canadian astronaut David Saint-Jacques has never been in space... ...but he has been under water for 2 seconds!
Many astronomers have discovered that many comets. For example, David Levy is the discoverer or co-discoverer of 22 comets.
Harrison Owen invented open space technology in 1982. Harrison Owen and David Belisle wrote a paper called the organization transformation.
Shoemaker-Levy 9
This question is posted in the Astronomy forum, so presumably you are asking about Eugene Shoemaker, an American geologist and amateur astronomer. His early work focused on an analysis of the Barringer Meteor Crater near Winslow, Arizona, and his studies on impact craters in general. In collaboration with David Levy, they discovered a series of comets. One of them, "Shoemaker-Levy 9" (the ninth comet discovered by the team) broke apart and crashed into the planet Jupiter in 1994. See the link below to the Wikipedia article about him.
he was in space for over 1000000 years
he is famous for writing books about space and he goes thiere.
David Ae Levy's birth name is David Alexander Espinoza-Levy.
David Levy - psychologist - was born in 1954.
David A. Levy was born on 1953-12-18.
Marvin David Levy was born in 1932.
David H. Levy was born in 1948.
David Guy Levy goes by DGL.
David Levy Yulee died on 1886-10-10.
David Levy Yulee was born on 1810-06-12.
David Levy - footballer - was born on 1963-01-26.
David Levy - chess player - was born in 1945.