Inform of possible evacuation in Tokyo at the risk of meltdown

In spite of the fact that long ago disappeared from the headlines of major news stories, an editorial in a leading newspaper in Japan warned that the crisis in Fukushima is still in a critical stage and that the Japanese government has developed contingency plans for evacuation of the Greater Tokyo potential of 39 million inhabitants. 

The reactor number 4 of Fukushima, possessing 75% of nuclear fuel as well as the Chernobyl complex, compliance before its collapse a total of 460 tons, is at risk of collapse.

Definitions of Nova, Black hole,Radio Galaxy, Redshirt, etc.

Nova - A star increases its brightness repentivamente and unprecedented ways, giving the impression that a new star has appeared where before there was nothing. Hence the name "nova" or again.

Cryogenic Telescope Assembly Spitzer

The Spitzer (CTA by its contraction in English) consists of four main parts: cryostat superfluity helium, a telescope Ritchey-Chretien lightweight 85cm, a set of outer shells, and housing chamber multiple instruments, which houses the science instruments. Everything is cool, is part of CTA. The CTA is mechanically mounted but thermally isolated from the spacecraft, using beams and supports, as well as protective shields against thermal radiation. The array of solar panels and shields the spacecraft, CTA blocked the sun and the other components of the spacecraft at all times, helping to keep the CTA as cold as possible.