when particles hit high density objects like magma, they lose energy or are absorbed. scientists can measure this outcome to determine the shape of the substance. it's like an x-ray. researchers are hoping to use the technique to get a better idea of what's inside of reactors. >> translator: we expect to be able to check the presence of heavy materials. even if radiation levels are so high that we can't approach the area. >> reporter: engineers will use detectors to try and determine the state of the melted fuel. we researchers did a similar experiment at a different nuclear power plant in 2012 and 2013. they were able to catch images of spent fuel in a pool inside the reactor building. wednesday, workers at fukushima will try to repeat that success. they are scheduled to set up a pair of detectors outside the number one reactor. engineers say knowing what's inside will help them figure out a way to decommission the plant, and put an end to the problem of contaminated water. noriko okada, nhk world. >>> japanese cabinet ministers have approved a ten-year plan to addres

. >> back way from the magma. >> from twitter, why is this timely?f keeping its license. they have to count all the species and animals on the ground. they have over 750 species, almost 17,000 animals. this is penguin attendance. >> cute cuddly. all cute and cuddly. >> but stinky. >> they really do. >> thank you guys. >> thank you for having us. >>> coming up next if you worry too much don't worry about it. it may just mean that you're really really smart. i worry a lot. >> you're really smart. >> yeah. >>> and if your resolution is to look and feel better, don't worry. we've got the workout trends to make fitness sir, we're loaded and getting ready to go... ...we're going to need you on the runway. (vo) don't let a severe cold hold you back. sir? (vo) theraflu starts to get to work in your body in just 5 minutes. (vo) theraflu breaks you free from your worst cold and flu symptoms. (vo) theraflu. serious power. the taste of light and fit greek non fat yogurt gives you the power to help make temptation shrink away! light and fit greek. with irresistib