0:00:13 > 0:00:20Hi, I'm Ricky, and this is Newsround.
0:00:20 > 0:00:22Rescue teams are helping survivors of the mudslides that have swept
0:00:22 > 0:00:25through Santa Barbara county in southern California in the US.
0:00:25 > 0:00:30At least 17 people have died.
0:00:30 > 0:00:33Emergency crews are searching for more than a dozen
0:00:33 > 0:00:34people who are missing.
0:00:34 > 0:00:38Heavy rains have fallen where wildfires burned just last month.
0:00:38 > 0:00:46It caused rivers of mud to come pouring down hills.
0:00:48 > 0:00:51Chelsea drew the first leg of their EFL Cup semi-final
0:00:51 > 0:00:52with Arsenal 0-0 last night.
0:00:52 > 0:00:54The new video assistant referee system was used twice -
0:00:54 > 0:00:58that's where the referee can check on a TV screen or with a video team.
0:00:58 > 0:01:01Last night's ref used it to check penalty decisions he'd not given.
0:01:01 > 0:01:04You can see the microphone he's wearing while he asks an official
0:01:04 > 0:01:06to take a look and check he made the right call.
0:01:06 > 0:01:12But he decided there was nothing to change his mind.
0:01:12 > 0:01:15Next, a Japanese astronaut has said sorry after wrongly
0:01:15 > 0:01:19claiming he'd grown an extra 9 centimetres in space!
0:01:19 > 0:01:20But his body has been changing.
0:01:20 > 0:01:28Here's Ayshah.
0:01:28 > 0:01:32This astronaut hit the headlines this week after saying he had
0:01:32 > 0:01:35stretched a staggering nine centimetres in space, that is the
0:01:35 > 0:01:39size of an average chocolate bar! But he has now admitted to making a
0:01:39 > 0:01:46measurement mistake. He has grown during his first and from the
0:01:46 > 0:01:50International Space Station, but only by two centimetres. It is quite
0:01:50 > 0:01:55normal for astronauts because there is zero gravity, which is the fourth
0:01:55 > 0:01:59here on earth that Paul's was downwards. Without gravity, the
0:01:59 > 0:02:03bones in someone's spine can expand and move slightly leading to a small
0:02:03 > 0:02:07change in height. It doesn't hurt, though. But don't start thinking you
0:02:07 > 0:02:12can go up in space if you want to get taller because it doesn't last
0:02:12 > 0:02:16forever. Eventually you'll spying goes back to normal when you come
0:02:16 > 0:02:23back down to earth. -- your spine goes back to normal.
0:02:23 > 0:02:26Now, we're not afraid of talking about poo here at Newsround -
0:02:26 > 0:02:29but this is a stinky story, even for us...
0:02:29 > 0:02:35The beautiful evening in a quaint English village. Well, things are
0:02:35 > 0:02:41not quite as lovely as they seem, because this lamp could soon be
0:02:41 > 0:02:50powered by to. Ryan is an inventor and he has made a special machine to
0:02:54 > 0:03:02turn dog poop into power for lamps. How does it work?Lift up the
0:03:02 > 0:03:09dispenser and grab a free bag, however many you want, then we scoop
0:03:09 > 0:03:16that into the bag and all you do is lift up the top covering, the whole
0:03:16 > 0:03:22bag, nothing is emptied, goes in there.Turning the handle pushes the
0:03:22 > 0:03:29bag into the machine, whether poop is broken down by and this produces
0:03:29 > 0:03:32methane and carbon dioxide, which fuels the light. The lamp is a big
0:03:32 > 0:03:37hit in the village and Brian is hoping that this machine can bring
0:03:37 > 0:03:42poop power to other parts of the country. Looks like it wasn't such a
0:03:42 > 0:03:48pants idea after all! I hope you were not having Coco Pops
0:03:48 > 0:03:49this morning!
0:03:49 > 0:03:52Next up, meet one of the stars of a new BBC nature
0:03:52 > 0:03:53documentary which starts tonight.
0:03:53 > 0:04:00I've been taking a look.
0:04:00 > 0:04:11Meet the world's smallest cat.
0:04:11 > 0:04:17No, this is not a kitten, it is of Rusty spotted cat and lives in Sri
0:04:17 > 0:04:20Lanka. They weigh little more than a bag of sugar, around 200 times
0:04:20 > 0:04:27lighter than a lion. Almost fully grown, this cat can sit in the palm
0:04:27 > 0:04:35of your hand, and while he might look cute, this furry Fala is a
0:04:35 > 0:04:40pretty fierce hunter. They look similar to their furry cousins, the
0:04:40 > 0:04:44domestic house cat, but the Rusty spotted cousin has hardly ever been
0:04:44 > 0:04:51filmed like this before. It is one of the stars in the BBC's new
0:04:51 > 0:04:56wildlife documentary Big Cats. Hang on, shouldn't they have called it
0:04:56 > 0:04:58small cats?
0:04:58 > 0:05:02That is it from me for now but we are back in half an hour, see you
0:05:02 > 0:05:03then.