"something somewhere is waiting to be known" -- carl sagan. >> "live life to the fullest." i'm not sure where that's from. i assume it's a general saying. >> "it's not about waiting for the rain to pass. it's about learning to dance in the rain," 'cause it's like you shouldn't wait -- technically, it's not like you should wait for opportunities to come. like, you should just go for them. >> "with power comes great responsibility." >> well, i always liked saying, "no day but today," about, like, living and taking advantage of the moment. >> "if you don't have something to nice to say, say it in yiddish." >> if you haven't found an adage, maxim, or aphorism to call your own, try this one from eleanor roosevelt... i like that. for "teen kids news," i'm emily. >> troy has some information that might surprise you about how much is enough of a good thing. [ chomp! ] >> it's not enough to just eat the right foods. you also need to know the right amounts. that's called portion control. nutritionist jax hubbard can show us what a normal serving should look like. >> well, it's always

which reminds me a bit of carl sagan the famous astronomer, he took apple to court after apple namedf its projects sagan. it was going to be for internal purposes as a sign of respect, there's a funny punch line to the story that i can't say on television, but i invite you to look it up. >> ooh, that's a tease. >> thank you very much, scott. >>> all right, it's 6:59 right now. let's check in with one final check on the weather with miss christina loren. >> good morning to you, yeah, a gorgeous sunrise setting up over the bay area. crystal clear, deceptive sun out there. it's cold. make sure you bring the jacket but something you can peel off by noon. up to 60 degrees inland. cooler by the water, and at 4:00 p.m., 63 comfortable degrees. above averages today and tomorrow. then the rain moves in as we head through the weekend we'll talk about that all day long. tomorrow we'll meet back here. >>> let's find out what you're dealing with on the roads. a deadly out there, mike. >> the south bay really going to get stirred up by this, the deadly accident has southbound 880 with a

i am the ceo of the planetary society, this organization started by a guy you may remember, carl saganhe questions is, how do these people find planets orbiting distant, distant stars? you can't see the planet. so you build one of these. we'll give you instructions in the magazine. what you detect is not the planet itself, but that slight wobble. >> gretchen: what does that mean? >> when you see the star wobbling with your extraordinary telescope, the only reason it could be wobbling is because the center of mass of the planet-sun system is making the thing shake like a hula dancer inform wait a second. i thought it was shaking because of the elastic band you had right there. that's a practical reason. but it actually shakes or wobbles in nature? >> yeah. they do, yes. so our sun wobbles a little bit on account of the gravity of the planets in orbit around it. >> steve: interesting. >> so the distant suns have the same feature. so when i was young, there was a lot of speculation, are there planets around every star? who know as soon as there might be. you remember the drake equation? t