kristine lazar on the challenges with pregnancy at 50. >> reporter: word that janet jackson is goingo be a mom comes just two weeks shy of her 50th birthday. >> my husband and i are planning our family. so i'm going to have to delay the tour. >> reporter: last month the singer announced she was canceling her world tour but didn't go into much detail. now we know she is expecting her first child. >> the chance that a woman who is 49 years old will get pregnant on her own is very low. probably less than 1%. >> reporter: dr. kristin bendixson is a fertility specialty at usc. she said jackson probably did ivf but probably not with her own eggs unless she froze them in her 30s. >> as a woman gets older the quantity and quality of her eggs goes down. her eggs have always been there since before she was born so those eggs are aging just like all body cells. >> reporter: a woman's uterus doesn't age so a woman in her 50s or 40s can get pregnant with a donor egg coming from a woman in her 20s. >> you can be menopausal and use an egg donor and get pregnant. >> reporter: the doctor says more an

>> reporter: in pasadena, kristine lazar, kpix 5. >> isn't it amazing it doesn't cost anything. it doesn't cost anything to say thanks. so very nice story. >>> what are we looking at here? pluto close up! nasa's new horizon spacecraft provided a view of the planet. it was if you believe it's a planet. it was captured last july and recorded by the spacecraft's long range reconnaissance imager nearly 10,000 niles above the surface and 3.6 "billion" miles from earth. that's something! as we come back to our planet earth bureau, we have a live look at mount diablo. and nice day for it. we have clear skies, numbers in the east bay approaching 90 degrees today. there's mount diablo at 3849 feet towering high above contra costa county and the numbers right now, concord 89 degrees. oakland 73. livermore 84. and san francisco 68. san jose right now it's 83 degrees. it's been a warm day. not record-breaking warmth. tomorrow we'll cool it down a little bit for sunday. it will stay warm through midweek. warming up on memorial day. fog and low clouds cool us down. tomorrow, much of the day p