is it possible to do a select by descending

This is a ponderment in have
I'm building a news engine for my website using MySQL/PHP
now....
i have my table (date, time, comment, body) for submissions

now i was thinking of sticking in ID...
and having php grab by 4, 3, 2, 1, 0 in that order as autoassigning an id starts at 0 and goes up

*is* *this* *possible*?!
or do i have to figure out another way of doing this? :

thnx

Ted

Select * from table_name order by id desc limit 5;