scott budman for nbc news. >> everybody is running to the computer now to check it out. i know.sit tight. some of our nation's heroes recently went from the war zone to a zone that only a select new men and women have ever experienced. outer space. jay gray brings us the story of four u.s. army soldier who are also now astronauts. >> reporter: in what is already an exclusive club of american astronauts, they are an even rarer breed. >> being an army astronaut, it's different. >> reporter: currently there are only four soldiers in the army nasa detachment. trading the boots and gun of the green army for the back room at johnson space center. learning to operate a robotic arm. fatigues have given way to a full space suit, then six-hour training sessions underwater. it's a much different environment than their previous army experience in the war zone. space is literally a world away from the battlefields in iraq and afghanistan. but these army astronauts are quick to point out the two missions actually have a lot in common. >> in my mind, there's a very, very close connection becau

kntv's scott budman has more from san francisco on google. >> google wants to give you the moon, literallyr phone. talk about an out of this world search, new software on google's andrd platform lets you find the stars wherever you are. >> ultimately providing much better answers. >> google invited the press to click through its new search offerings. the company called it searchology like the wonder wheel, letting you branch off from your original search topic and find a wider range of information. >> as the internet becomes more and more rich and people are able to do more and more with the internet, people want to -- you just need to be able to do more and making search more conversational in that way is what we're really going for. >> this one's called google squared, boxing up and comparing information collected from your search. click again and you get timeline, showing you the most popular search results based on dates, all trying to make your search experience smoother as google tries to stay ahead of its competition. >>> i think the main thing here is trying to give people a better