while, science can be a real buzzkill. just ask pluto, which used to be a planet, or cocaine, which used to be a medicine. the latest thing being ruined by science? spiderman. (audience reacts) i'm going to pretend you're more upset than that. let me try it again. it's spiderman! (audience reacts) yeah, i thought you would be upset. because a new study from cambridge university says that according to their calculations, spiderman should not be able to climb walls. (audience reacts) yeah! yeah. yeah. boo! boo! now, i'm not questioning these scientists' credentials -- i think they're the ones who tried be a broadway show. but... we didn't listen! (applause) but no wall-climbing? that's one of the main things he does! without that, he just shoots goo and is radioactively guilty about his uncle. according to the study, the largest animal capable of wall climbing is the gecko.kirsten dunst wants to kiss one of those upside down. i mean, that's a lot of tongue., that's what they say. they catch flies with their tongue, see. s the case so obviously spiderman will some of the things a spide

our solar system may really have a nintplanet after all. remember, they got rid of pluto a couple years back and says this may b 5,000 types bigger than pluto and haven't seen it yet but say it could be spotteded with a telescope within five years. >>> also this morning, michael, as you can see right here, you have some news about amy schumer. >> yeah, you know, we love her jokes. we all love amy schumer's jokes but now some are saying they're not actually her jokes and -- >> one of them or many of them? >> well, i think -- >> we'll get into it but a lot say she may have stolen jokes. she's going to rct to that. >> that is coming up. >>> right out to robin. she has that exclusive interview with will smith in l.a. hey, robin. >> all right, george, will smith, one of the actors who many feel should have be nominated for his performance in "concussion." yeah, he hoped to receive a nomination. many actors hope to hear their name called nominatioionororngng butt will smith says he's even more concerned about what he sees as a serious issue that goes far beyond the film industry. is hol

ihe t deal?>> 's it not-- pluto justo tak meat th. clear ph>> steien: w. kno nowe kww hoh muc youat helu pto. o, >> n no, i just -- o,>> n- no->> we haven and uanerstding. t'so iots n just atl lite bit ndbeyo nneeptu orto plu. 's it,e, lik0 5 times ferarthay aw .e so wowant tal cl itla pnetne niak and mte ill aar pt of the ly famit, bus thihi tsng i soar fay aw i, thatt has yet to tecomplerb an oit adrounhe t sunsi nce the ice age. te >> s:phenll reay? ea>> yoh, s ion d w'tant to get co all zyh wit itec bt'ause is tno onef os. u s >>enteph h: we'tavenn see it t. ye o,>> n no,o, n no. sos it'er infred by my ll co--eagues myle colagues,oo gd et planary cueolleag ms,ikewn brod anhisle colagues found its thi-- ho>> trese a g theuysho wde d moteo plut afromla p-net->> y the f aound ptlane brigge an thto plu thato nne oan woted t acallla pnet andha ttea mns it d woul dragto plun dow witht i andor fced the voteo sto plulo st.>> n wel cal this onete blu ut plooo?>> if'r youeea rllyos n, talgici n' doet hav anybl proitem wh at th .'s ity ver o farheut t are,nd we ow knhe-- t way to feigur it

. question: what is the deal? >> the deal is that it's, first, it's not pluto-- just to make that clear. >> stephen: i know. we know how much you hate pluto. >> no, no, i just -- >> no, no-- >> we have an understanding. so it's not just a little bit beyond neptune or pluto. it's, like, 50 times farther away. so we want to call it planet nine and make it all part of the family, but this thing is so far away, that it has yet to complete an orbit around the sun since the ice age. >> stephen: really? >> yeah, so i don't want to get all cozy with it because it's not one of us. >> stephen: we haven't seen it yet. >> no, no, no, no. so it's inferred by my colleagues-- my colleagues, good planetary colleagues, mike brown and his colleagues found it this -- >> those are the guys who demoted pluto from a planet-- >> they found a planet bigger than pluto that no one wanted to call a planet and that means it would drag pluto down with it and forced the vote so pluto lost. >> stephen: whatever lets you sleep at night. can we call this one blute ploouto? >> if you're really nostalgic, i don't have an

stunning new pictures of pluto, from the probe new horizons. and of course the international space station where today a moment of silence was held. but it was on that january night three decades ago that president ronald reagan postponed his state of the union address to deliver his poignant remembrance. >> the future doesn't belong to the faint hearted. it belongs to the brave. the challenger crew was pulling us into the future, and we'll continue to follow them. >> reporter: kevin tibbles, nbc news, chicago. >>> there is a big change coming for new moms in the military. the pentagon announced that it will now grant 12 weeks of maternity leave to women across all branchs. that's good news for the army and air force because it doubles their leave time. bad news for the navy and marines because it cuts their leave back from 18 weeks. >>> when we come back here tonight, barbie is breaking with the past. why the iconic doll line is getting a historic makeover. ==janelle/vo=== the offensive party theme that landed them in trouble. d how schooleadersfoun out about it. ==raj/vo== plus,

bigger than earth and as far as 100 billion miles away. way past pluto, which lost status as a planet in 2006. and for the first time in a decade you could see mercury, venus, mars, saturn and jupiter, all with the naked eye, all five aligned in the pre-dawn sky from now until february 20th. >>> it is official, the national oceanic and atmospheric association announcing today 2015 was the hottest year since record keeping began in 1880. ten months had record high temperatures. the record warmth was broadly spread around the world with 15 of the 16 warmest years on record occurring since 2001. >>> when we come back, why one father is so grateful to jamie foxx, after the actor proved he is also a hero off screen. headaches, and not just on the ground. why bay area pilots are concerned about gridlock in the sky. =janelle/vo= plus, the woman killed in the greyhound bus crash. the surprising action her family had to take to get answers. ===next close=== next. ==janelle//take vo== right now at six. >>> finally tonight, usually when actor jamie foxx leaps into action, there is a director on

. remember, they got rid of pluto a couple years back and says this may b 5,000 types bigger than pluto and haven't seen it yet but say it could be spotteded

got rid of pluto a couple years back and says this may b 5,000 types bigger than pluto and haven't seen it yet but say it could be spotteded with a telescope within five years. >>> also this morning, michael, as you can see right here, you have some news about amy schumer. >> yeah, you know, we love her jokes. we all love amy schumer's jokes but now some are saying they're not actually her jokes and -- >> one of them or many of them?

. way past pluto, which lost status as a planet in 2006. and for the first time in a decade you could see mercury, venus, mars, saturn and jupiter, all with the naked eye, all five aligned in the pre-dawn sky from now until february 20th. >>> it is official, the national oceanic and atmospheric association announcing today 2015 was the hottest year since record keeping began in 1880. ten months had record high temperatures. the record warmth was broadly spread around the world with 15 of the 16 warmest years on record occurring since 2001. >>> when we come back, why one father is so grateful to jamie foxx, after the actor proved he is also a hero off screen. proved guys, it's just the two of you. the setting is just right. there's something in the air. but here's the thing: about half of men over 40 have some degree of erectile dysfunction. well, viagra helps guys with ed get and keep an erection. ask your doctor if your heart is healthy enough for sex. do not take viagra if you take nitrates for chest pain or adempas® for pulmonary hypertension. your blood pressure could drop to an

billion miles away. way past pluto, which lost status as a

100 billion miles away. way past pluto, which lost its status as a planet in 2006, and for the first time in more than a decade, you can see mercury, venus, mars, saturn and jupiter, all with the naked eye, all five aligned in the pre-dawn sky from now until february 20th. >>> it's official -- the national oceanic and atmospheric association announcing today 2015 was the hottest year since record-keeping began in 1880. 10 of the 12 months had record temperatures. the record warmth was broadly spread around the world with 15 of the 16 warmest years on record occurring since 2001. >>> when we come back, why one father is so grateful to jamie foxx, after the actor proved he >>> finally tonight, usually when actor jamie foxx leaps into action, there is a director on hand to yell "cut." but now the star is being hailed as a real-life hero for saving a man trapped inside of a burning car right outside his los angeles home. details. >>> paramedics, what is your emergency? >> reporter: a pickup truck slams into a ditch and flips several times. >> someone is trapped? >> yes, yes. the ca

mes bigger than earth and as far as 100 blioniles away. way st pluto, which lost itstatus as a planet in 2006, and for the first time ie than adecade, you can see mercury, venus, mars, saturn and juter, all with e nakeeye, all ve aligneinhere-dawsky from now until feuary 20th. >>> it oicl thon ocnianatmospri socin nocingayotsteasie i1810mo hecteeratur e rdh s y sp athworlth record occurring since 2001. >>> when we come back, why one > finally tonight, usually when actor jamie foxx leaps into action, there is airector on hand to yell "cut." t now the st is being hailed as a real-life hero for saving man trped inde of a burning r right outside h l angeleshome. nbc's morgan dford s the details. > pamedicswhats ur emergenc >> reporter: a pickup uc ams in a ditch and fli seratis. >> someone is trapd? >>es, yes. the car is on fire! >> reporr:nt calls f lp andunkelyero. d't lk att aser justoo it ke -i ju hato dsomeing. >> rorte somhing that de all the diffee. >> good. you good? uplef cars dve by and didn't stop. he was re f my son, and he savedis le. >> get herand the ucis over on its