  Partially motivated by the recent papers of Conus, Joseph and Khoshnevisan
[Ann. Probab. 41 (2013) 2225-2260] and Conus et al. [Probab. Theory Related
Fields 156 (2013) 483-533], this work is concerned with the precise spatial
asymptotic behavior for the parabolic Anderson equation \[\cases{\displaystyle
{\frac{\partial u}{\partial t}}(t,x)={\frac{1}{2}}\Delta
u(t,x)+V(t,x)u(t,x),\cr u(0,x)=u_0(x),}\] where the homogeneous generalized
Gaussian noise $V(t,x)$ is, among other forms, white or fractional white in
time and space. Associated with the Cole-Hopf solution to the KPZ equation, in
particular, the precise asymptotic form \[\lim_{R\to\infty}(\log
R)^{-2/3}\log\max_{|x|\le R}u(t,x)={\frac{3}{4}}\root 3\of {\frac{2t}{3}}\qquad
a.s.\] is obtained for the parabolic Anderson model
$\partial_tu={\frac{1}{2}}\partial_{xx}^2u+\dot{W}u$ with the $(1+1)$-white
noise $\dot{W}(t,x)$. In addition, some links between time and space
asymptotics for the parabolic Anderson equation are also pursued.
