Dr Niamh Shaw is back with a very special Space Hub. She is celebrating the 20th birthday of the International Space Station, as well as looking at what´s it really like to live above the sky.
Niamh knows all about it and she will also tell you about her own Zero Gravity flight she took around three years ago. It's all part of the training needed to become an astronaut.
So, check out Space Hub up at the top of the article and then have a look at this cool video from NASA all about this amazing lab floating in space.
In the past 20 years 240 people from 19 countries have visited the unique microgravity laboratory, which has hosted more than 2,800 research investigations from scientists in over 100 nations.
If you want to keep track of the Space Station Overhead keep an eye on this website: SPOT THE STATION.
Tune in to After School Hub every weekday from 3.20pm and catch up on ALL the shows on the RTÉ Player.