:00:00. > :00:00.Hi, I'm Ayshah and this is Newsround.
:00:07. > :00:09.The space trip with a secret mission.
:00:10. > :00:23.And the gooey new trend for making slime.
:00:24. > :00:26.First to the mysterious space plane that's got a lot of people
:00:27. > :00:39.Touchdown, after a top-secret mission lasting two years.
:00:40. > :00:42.This unmanned US military space plane landed at Nasa's Kennedy Space
:00:43. > :00:52.Exactly what the plane has been up to during its 718 days
:00:53. > :00:58.The X37B belongs to the US Air Force,
:00:59. > :01:05.But the small bit of information we do know is that this space plane
:01:06. > :01:09.It's 29 feet long, with a wingspan of 15 feet, much smaller
:01:10. > :01:17.It's thought a series of experiments are being carried out on board,
:01:18. > :01:19.testing different technologies and materials in space.
:01:20. > :01:22.But still, a lot of what happens on this plane is kept secret.
:01:23. > :01:24.When it came into land, it caused a sonic boom,
:01:25. > :01:27.with one Twitter user in living nearby saying her house shook
:01:28. > :01:41.Another mission is scheduled later this year.
:01:42. > :01:48.Footie next, and Chelsea are just one win away from the Premier League
:01:49. > :01:50.title after last night's three-nil win against Middlesbrough.
:01:51. > :01:53.Diego Costa scored this goal after 23 minutes.
:01:54. > :01:58.Then Marcos Alonso netted this shot 11 minutes before the break
:01:59. > :02:02.and Nemanja Matic scored the last goal.
:02:03. > :02:05.That crushing defeat means Middlesborough are relegated
:02:06. > :02:07.from the Premier League after just one season.
:02:08. > :02:11.Middlesbrough's head coach thanked fans after the match.
:02:12. > :02:16.That support, both home and away, has been absolutely top class
:02:17. > :02:18.and the one thing that supporters deserve is Premier League football.
:02:19. > :02:22.We're all disappointed, we need to finish the season strong
:02:23. > :02:30.It's gooey, it's sticky and it's slimy.
:02:31. > :02:34.Well, it's slime and loads of you have been making it at home.
:02:35. > :02:37.But there are some worries that one ingredient you use to make it,
:02:38. > :02:48.Therapeutic... Satisfying... Messy...
:02:49. > :02:57.Oh, right, well, some of you love slime and some of you, not
:02:58. > :03:01.It comes in rainbow, unicorn pink, green and just about any other
:03:02. > :03:09.On some social media sites, there are millions of posts.
:03:10. > :03:12.When you type in "slime" online, loads of how-to videos pop up.
:03:13. > :03:14.I've come along to this class, where they
:03:15. > :03:18.This type of slime is called oobleck.
:03:19. > :03:23.And when you pick it up, it seems solid and when you
:03:24. > :03:28.leave it in your hand, it goes into a very liquidy mixture.
:03:29. > :03:32.The best thing about it if you can play with it for
:03:33. > :03:34.hours and hours and it never seems to stop.
:03:35. > :03:38.You can make it into different things.
:03:39. > :03:40.But some of you have been making it at home and
:03:41. > :03:43.there have been reports that one of the ingredients, is called Borax.
:03:44. > :03:46.It's a type of chemical used in cleaning products and is found in
:03:47. > :03:50.some household items in a very small doses.
:03:51. > :03:52.But it has caused problems with some children's skin.
:03:53. > :04:07.Hi, Newsround. You need to keep Borax Abhay were small children
:04:08. > :04:13.cannot reach it. If you have eczema or sensitive skin, wear gloves. That
:04:14. > :04:17.will keep your skin say. Try not to splash any in your eye. It will be a
:04:18. > :04:22.good idea to tell an adult before you start making slime. Just to be
:04:23. > :04:28.sure that if there's any problems, somebody knows. If your skin hurts
:04:29. > :04:32.get itchy or red, run it under lots of cold water and if that doesn't
:04:33. > :04:35.make it better, speak to an adult and perhaps ring 111, otherwise
:04:36. > :04:39.happy slime making. Thank you. Go online to find out more
:04:40. > :04:42.about other games and crazes like fidget spinners
:04:43. > :04:45.and what about the new skill-toy Join me in half an hour,
:04:46. > :04:53.when I'll show you the weird sport that's getting really popular
:04:54. > :04:56.with girls in Finland.