:00:15. > :00:21.look at the video that kick-started YouTube. Calvin Harris makes pop
:00:21. > :00:27.history. First, scientists say we need to
:00:27. > :00:32.clean up space because there is too much junk up there. A new study says
:00:32. > :00:35.the number of abandoned satellites above the Earth will lead to
:00:36. > :00:40.catastrophic collisions. This could damage vital missions. Martin has
:00:40. > :00:47.been to meet Tim O'Brien, who explained how we could get rid of
:00:47. > :00:51.some of it. Send up a robotic spacecraft. It fires this harpoon
:00:52. > :00:55.out which buries itself in the spacecraft and then they drag it
:00:55. > :01:05.into a position where they can direct it back into teRt's
:01:05. > :01:08.atmosphere. Next, Ben Wright is on the street where it happened and
:01:08. > :01:13.sent Newsround this report. It is more than a week since two
:01:13. > :01:17.bombs went off in the American city of Boston during the marathon
:01:17. > :01:22.killing three people and injuring many more. Life is beginning to
:01:22. > :01:26.return to normal. The road where the bombs went off is still closed to
:01:26. > :01:29.everybody because police are still searching for evidence as they make
:01:29. > :01:35.a case against the people they think were responsible for this. They
:01:35. > :01:39.believe that there were two brothers who planted the bombs. One of them
:01:39. > :01:44.died on Friday after a gun fight with police. The second is very
:01:44. > :01:48.injured but he is in hospital and yesterday, the 19-year-old, Dzokhar
:01:48. > :01:51.Tsarnaev, was charged with using a weapons of mass destruction against
:01:51. > :01:55.the American people. It is a very serious crime. He might face the
:01:55. > :02:00.death penalty. He is alert. He understands the charges against him.
:02:00. > :02:06.Now the police and the city want a trial to happen so they can bring
:02:06. > :02:11.him to justice. Next, it has been called one of the
:02:11. > :02:15.biggest doping scandals in British horse racing industry. 11 horses
:02:15. > :02:20.were found to have steroids in their bodies when they were tested. The
:02:20. > :02:24.drugs are not allowed because they give animals an unfair advantage in
:02:24. > :02:28.races. Mahmood Al Zarooni has admitted making a catastrophic
:02:28. > :02:33.error. He will now face a disciplinary hearing.
:02:33. > :02:37.These kids on a building project are among millions of children who have
:02:37. > :02:41.to work to survive instead of getting an education. Many children
:02:41. > :02:47.in Bangladesh work to make pots. One of the main goals for the United
:02:47. > :02:53.Nations is primary education for every child by 2015. There are still
:02:53. > :02:56.61 million primary aged kids out of school.
:02:56. > :03:00.Pakistan has the second-highest number of out of schoolchildren in
:03:00. > :03:04.the world. Many children don't go to school because they have to work to
:03:04. > :03:13.provide for their families. TRANSLATION: If you work in shops
:03:13. > :03:19.during the day, raise your hand. TRANSLATION: My uncle works in the
:03:19. > :03:22.market selling flowers. I help him. The head teacher has been the
:03:22. > :03:28.principle running the school for disadvantaged children.
:03:28. > :03:35.TRANSLATION: These kids are poor and their parents must make them work.
:03:35. > :03:39.It is my job to make sure these kids study. The classroom is the
:03:39. > :03:43.playground of the local park. They are taught all the usual subjects
:03:43. > :03:48.like English, maths and science, as well as Islamic studies.
:03:48. > :03:57.TRANSLATION: If we have education, we will never be poor. We can
:03:57. > :04:02.provide better lives for our families. Education is going to be
:04:02. > :04:08.the only way some of these kids get out of poverty. It is hoped as the
:04:08. > :04:11.principle includes more kids into his unusual classroom, that many
:04:11. > :04:16.more can be helped. Now, it looks like we may have a new
:04:16. > :04:21.King of Pop. Calvin Harris has become the first act ever to have
:04:21. > :04:29.eight top ten singles from one albums. Calvin's beaten the previous
:04:29. > :04:31.record of seven held by Michael Jackson. It is after his Ellie
:04:31. > :04:36.Goulding collaboration on I Need Your Love.
:04:36. > :04:42.Last up, are you older than YouTube? It is eight years old today and this
:04:42. > :04:47.was the first-ever video to be up loaded. Here we are...Pretty