0:00:03 > 0:00:06You're watching Newsround, with me, Leah, this Wednesday afternoon.
0:00:06 > 0:00:07We're live for the next five minutes.
0:00:07 > 0:00:12Coming up:
0:00:12 > 0:00:15This spacecraft's final mission on Saturn.
0:00:15 > 0:00:19And how peanut paste is saving kids' lives.
0:00:28 > 0:00:31First, a service of hope and remembrance has been
0:00:31 > 0:00:34held in London two weeks on from the Westminster attack.
0:00:34 > 0:00:36Five people, including the attacker, died, and at least
0:00:36 > 0:00:4150 people were hurt.
0:00:41 > 0:00:43Today, 2000 people gathered at a multi-faith service
0:00:43 > 0:00:46in Westminster Abbey, including family of those who died,
0:00:46 > 0:00:48emergency services staff, and the Duke and Duchess
0:00:48 > 0:00:52of Cambridge.
0:00:52 > 0:00:55The violent assault two weeks ago against Londoners and visitors to
0:00:55 > 0:00:57the city from around the world, and the killing
0:00:57 > 0:00:59of a police constable on
0:00:59 > 0:01:04duty at the Palace of Westminster, have shocked people everywhere.
0:01:04 > 0:01:07At a time of sorrow, a time when we are
0:01:07 > 0:01:17tempted to despair, may we find hope.
0:01:17 > 0:01:19And if you want to find out more about what happened
0:01:19 > 0:01:23in Westminster two weeks ago, then head to Newsround online.
0:01:23 > 0:01:26This small packet might not look like much, but it's saving thousands
0:01:26 > 0:01:28of children's lives around the world right now.
0:01:28 > 0:01:30Inside is peanut paste, and it's helping kids
0:01:30 > 0:01:34who don't have enough to eat.
0:01:34 > 0:01:36One place they're being used is South Sudan, in Africa,
0:01:36 > 0:01:40where a famine has been declared.
0:01:40 > 0:01:46BBC reporter Anna Foster is there and sent us this.
0:01:46 > 0:01:51This is a special nutrition centre where mums bring their babies.
0:01:51 > 0:01:56Just over there, they are being weighed, and
0:01:56 > 0:01:59they have a special tape that goes round a baby's arm
0:01:59 > 0:02:00to see whether or not it
0:02:00 > 0:02:01is malnourished.
0:02:01 > 0:02:04In this area, it is called Unity State, it is about the
0:02:04 > 0:02:06size of Greater Manchester, and 290,000 children
0:02:06 > 0:02:07are severely malnourished
0:02:07 > 0:02:08and need serious help.
0:02:08 > 0:02:10They come to places like this to get it.
0:02:10 > 0:02:20There are lots of special things that can be given to the children
0:02:22 > 0:02:24when they've had not enough to eat that really help
0:02:24 > 0:02:25improve their health.
0:02:25 > 0:02:27Emily is from Unicef, and what you are
0:02:27 > 0:02:28holding here, Emily, is
0:02:28 > 0:02:31something that looks really small in a packet, but this can save a
0:02:31 > 0:02:32child's life.
0:02:32 > 0:02:33It can.
0:02:33 > 0:02:36So, this is a package of nuts, oil and milk, and
0:02:36 > 0:02:39essentially what this does is, it nourishes the baby really quickly,
0:02:39 > 0:02:41so a child will take this for about a week,
0:02:41 > 0:02:42and you can see the
0:02:42 > 0:02:44difference in a couple of days.
0:02:44 > 0:02:45They put their weight back on, and it
0:02:45 > 0:02:46completely changes their appearance.
0:02:46 > 0:02:49So, it is a bit of a miracle food, really.
0:02:49 > 0:02:51So, this would be the same as a meal?
0:02:51 > 0:02:52Yeah, exactly.
0:02:52 > 0:02:54They can take between one and three a day,
0:02:54 > 0:02:58and for between seven days and 14 days, and what this will do is, it
0:02:58 > 0:03:01will completely transform the children who are
0:03:01 > 0:03:03severely malnourished.
0:03:03 > 0:03:07This is really special stuff, and you can see some of the children
0:03:07 > 0:03:08round here taking it.
0:03:08 > 0:03:10A box of this is about ?60, and they say every box
0:03:10 > 0:03:16save a child's life here in South Sudan.
0:03:16 > 0:03:17Thanks, Anna.
0:03:17 > 0:03:20You can find out more about the crisis in South Sudan,
0:03:20 > 0:03:25and why it's happening, in our guide at Newsround online.
0:03:25 > 0:03:27A spacecraft that's been orbiting around the planet Saturn
0:03:27 > 0:03:30for the past 13 years is about to start its final mission.
0:03:30 > 0:03:32But what exactly will it be doing?
0:03:32 > 0:03:34Here's Jenny.
0:03:34 > 0:03:35Meet Cassini.
0:03:35 > 0:03:40Liftoff of the Cassini spacecraft....
0:03:40 > 0:03:44After a seven-year journey through the solar system,
0:03:44 > 0:03:47it's been circling Saturn since 2004, its mission, to find out more
0:03:47 > 0:03:53about the planet and its family of rings and moons, but not for much
0:03:53 > 0:03:55longer, because it's running out of fuel.
0:03:55 > 0:03:58But before that happens, it's got a pretty important job to do.
0:03:58 > 0:04:01For the next five months, the spacecraft will dive through the
0:04:01 > 0:04:042400-kilometre gap between Saturn and its rings as part of the
0:04:04 > 0:04:10mission's grand finale.
0:04:10 > 0:04:12But that's not all.
0:04:12 > 0:04:16This will happen not once but 22 times.
0:04:16 > 0:04:20On the final orbit, Cassini will plunge into Saturn,
0:04:20 > 0:04:23fighting to keep its antennae pointed at Earth as it sends its
0:04:23 > 0:04:27goodbye message.
0:04:27 > 0:04:29It's hoped the craft's final close-up findings will
0:04:29 > 0:04:36help us understand how giant planets form and grow over time.
0:04:36 > 0:04:43Pretty good for a final outing!
0:04:43 > 0:04:45Finally, this pink diamond has been sold for a price
0:04:45 > 0:04:46that's out of this world!
0:04:46 > 0:04:49The rock is the largest of its kind ever found,
0:04:49 > 0:04:52and has just been bought at auction for more than ?57 million
0:04:52 > 0:04:53in Hong Kong by a jewellery shop.
0:04:53 > 0:04:55That's all from me.
0:04:55 > 0:04:56Newsround's back tomorrow morning with Jenny at 7.40.
0:04:56 > 0:04:58Bye.