Is Microsoft out Googling Google ?

I really do have to tell about Microsoft's World Wide Telescope. I have downloaded it and am doing my best to compare its functions with Google Sky.

Both are very, very clever and both are very, very FREE ...

I am not able to give a breakdown of their functions because my science isn't up to it but feel sure that some teacher users will quickly latch onto either or both of these as exceptional Web 2.0 tools with a difference.

Just WOW really ... wouldn't it be great to have a Google Ocean ?