:00:00. > :00:00.Good afternoon, I'm Martin with the best of the stories
:00:00. > :00:13.Stay tuned for some incredible tech giving us a whale's eye view.
:00:14. > :00:15.And if you can't wait for Doctor Who tonight,
:00:16. > :00:26.I've got some last minute gossip with his brand new assistant.
:00:27. > :00:29.But first to those incredible whale pics.
:00:30. > :00:31.Scientists have come up with a ground-breaking way to learn
:00:32. > :00:45.This is not a view you get to see every day and that is because it is
:00:46. > :00:54.Scientists have found a new way of seeing whales
:00:55. > :00:57.in their natural habitat using a special type of camera called...
:00:58. > :01:04.They are attached to the whale's back using suction cups like this.
:01:05. > :01:07.This allows scientists to record astounding images.
:01:08. > :01:10.It gives them a glimpse some of their life under the sea and
:01:11. > :01:14.how they behave, how they interact with other whales and where the feed
:01:15. > :01:21.The camera tags stay on each whale for between
:01:22. > :01:26.24 and 48 hours until they drop off and are collected by the scientists.
:01:27. > :01:29.The information they get is very important because it helps protect
:01:30. > :01:35.the whales and the areas they feed in.
:01:36. > :01:38.More incredible images from Planet Earth now.
:01:39. > :01:40.These massive photos, just released by Nasa,
:01:41. > :01:47.The maps are made by stitching together thousands
:01:48. > :01:51.The clusters of bright light are cities and built-up areas.
:01:52. > :01:53.Scientists say they give us the clearest view yet
:01:54. > :01:58.Next, when you're along the street, sometimes the pavements
:01:59. > :02:00.can be pretty messy, with litter, rubbish, even dog poo
:02:01. > :02:04.Gum has become such a problem on our pavements that parts
:02:05. > :02:08.of the government want the companies who make chewing gum to help pay
:02:09. > :02:14.It costs an estimated ?60 million a year cleaning it up.
:02:15. > :02:17.Any Doctor Who fan worth their sonic screwdriver will know that at 7.20pm
:02:18. > :02:20.tonight the tenth series kicks off and the new series brings
:02:21. > :02:24.She's called Bill Potts and I met up with Pearl who plays her.
:02:25. > :02:26.Something's coming, Bill, and I have the feeling that we are going
:02:27. > :02:39.Give us a little bit of an idea about the character,
:02:40. > :02:42.Bill, and what the audience can expect from you, the new assistant.
:02:43. > :02:45.Bill, she's great, man, she's really cool.
:02:46. > :02:48.She is very normal, much like somebody you bump
:02:49. > :02:54.She has a very direct way of looking at things, and
:02:55. > :02:57.she asks the Doctor a lot of questions that have not been asked
:02:58. > :03:01.Why do they keep saying, "exterminate"?
:03:02. > :03:06.Wouldn't it be quicker to just say, "kill"?
:03:07. > :03:13.What was it like, going into the TARDIS for the first time.
:03:14. > :03:18.It is genuinely bigger on the inside.
:03:19. > :03:20.There are so many things to play with, it is great.
:03:21. > :03:23.If there are any shots of me in the background playing with
:03:24. > :03:26.things, that is genuinely me playing with things in the background,
:03:27. > :03:31.What can Doctor Who fans look forward to in
:03:32. > :03:37.Oh, we have got some epic adventures to be had!
:03:38. > :03:41.They go to some amazing places, with some epic sets, and some of the
:03:42. > :03:47.Did you get scared when you saw any of the monsters
:03:48. > :03:50.Because I think, for a children's audience, I get
:03:51. > :03:57.Some towards the middle and the end of the series that are
:03:58. > :04:02.There are some that, you know, you are in the
:04:03. > :04:04.scene, and they appear, and you are like, "Oh!",
:04:05. > :04:06.which is kind of good, because
:04:07. > :04:11.that is what your character is supposed to do!
:04:12. > :04:14.So, is it true that the Doctor will be regenerating at the
:04:15. > :04:18.Yes, yes, he is regenerating in the Christmas Special.
:04:19. > :04:22.I just feel happy that I got to work with Peter, you know.
:04:23. > :04:25.I think his Doctor is wonderful, and he is such
:04:26. > :04:28.a brilliant actor and such a lovely guy to work with, I just feel really
:04:29. > :04:32.lucky that I got cast in this season.
:04:33. > :04:39.If you want to watch the whole of that interview
:04:40. > :04:42.And whilst you're there, tell us what your favourite
:04:43. > :04:48.Here's your sport now and we're sending a massive
:04:49. > :04:50.highfive to Katie Archibald, who got Great Britain's first gold,
:04:51. > :04:53.at the World Track Cycling Championships, in Hong Kong,
:04:54. > :04:56.Katie was second going into the final event but beat
:04:57. > :05:06.Football and Spurs have the chance to narrow the gap on Chelsea at the
:05:07. > :05:20.top of Premier League to four points today if they beat Bournemouth. The
:05:21. > :05:21.score is currently 3- 02. Nine. -- to tarmac.
:05:22. > :05:23.And in F1, Sebastian Vettel looks like the one to beat,
:05:24. > :05:26.at the Bahrain Grand Prix The Ferrari driver was quickest
:05:27. > :05:30.Right now I've got some marbellous news for you,
:05:31. > :05:33.it was Marbles World Championships yesterday with teams from Germany,
:05:34. > :05:38.Well, 49 marbles are placed in a ring and players take it
:05:39. > :05:43.The first team to reach 25 points wins and that's just what
:05:44. > :05:53.We'll be back tomorrow morning at half ten.
:05:54. > :05:57.Before then, why do you head onto Newsround online for all the rest of
:05:58. > :06:03.today's stories? If you love to read, then get
:06:04. > :06:06.involved with the CBBC Book Club Tell us your thoughts on the
:06:07. > :06:09.brand-new Book of the Month,