What is a black hole?

We want to reveal cosmic star-formation history.

However, most star-formation is hidden by dust (>90% at z > 1)

Infrared light can see through the dust.

We launched infrared space telescope, AKARI!

Launch movie is a must-see.

Cosmic star-formation histroy revealed by AKARI.

(Goto et al. 2010ab,2011ab)