What will Tim Peake's expedition do for UK science? | #SciSparksAdvent

Personally for Tim, he'll be able to carry out experiments which could lead to revolutionary developments. He's also acting as a guinea pig - allowing people back on Earth to monitor how his body is adapting or changing as a result of the zero gravity. During his 6 month voyage, his bones will get weaker  - he has to do 2 hours of exercise a day to combat this. When he returns it will take around a year for his body to completely get over the effects of being in zero gravity. He'll also be able to pass on his experiences - even just the view. Understandably many astronauts who have previously flown in space say that's the one thing which truly changes you - seeing it with your own eyes, and when you return you can truly appreciate it. This, apparently is known as the overview effect. It's also pioneering in the sense that no British person has done what Tim's doing. He's the first British astronaut to be spending a term on board the ISS. Other British astronauts have flown in space - Helen Sharman became the first British Citizen to travel in space when she visited the Soviet space station Mir in 1991. Others have flown either as private individuals or by taking up US citizenship.

School children across the UK can finally relate to someone on board the ISS - someone with a British accent - coming from a town near them. Follow him on Twitter @astro_timpeake where he'll hopefully be posting updates from the ISS. Whilst he's on board he's got lots of exciting plans - including opportunities for school children to link up with him on the ISS. This is the first time he's been on the ISS and no doubt he'll make the most of it.

Good luck Tim!

What Altitude Can You See the Curvature of Earth?

From Felix Baumgartner's daredevil skydive to teddy bears we've sent into space we're all familiar with the Earth's characteristic curvature. 100km from the Earth's surface is usually taken as where space begins - but Felix's jump was at around 24 miles (39 km), well under the height that space is considered to begin. So the answer is - no one really knows! Although passengers on board Concorde did see the curvature of Earth at altitudes of about 60,000ft. Although this gives a pretty clear indication of the figures, this can be distorted by plane windows for example. Because of this debate, research has taken place to determine the real figures. After much deliberation the real altitude is around 35,000 ft  - so next time you take a plane ride see if you can see the curvature of Earth! 

Follow the rest of my #SummerofScience and me on Twitter @Sci_Sparks. Don’t forget to download my charity eBook, Science Bites: A Short Tour of the Universe HERE. 

#SummerofScience 

Our 21st Century World

We now see the world through different eyes. Whether it's global warming and the Europe-wide thunderstorms or the middle-eastern crisis. Whatever it is... we can't help but look at our world through different eyes. So today, I thought as part of the Summer of Science I'd put a collection of my favorite pictures of Earth together. 

And no, this picture hasn't been photoshopped!! 

Just for good measure - one of the coolest astronaut selfies!


Follow the rest of my #SummerofScience and me on Twitter @Sci_Sparks. Don’t forget to download my charity eBook, Science Bites: A Short Tour of the Universe HERE. 

Does the Sun's cycle influence our weather?

The Sun's magnetic field constantly changes - the Sun's polarity reverses every 11 years. This activity changes the number of sunspots on the Sun's surface - this then peaks at the 'solar maximum'. The Sun's activity cools areas on the Sun meaning they appear darker. The solar cycle can also cause small changes in the Sun's heat and light output. Some studies have shown some link between few sunspots and cold winters in Europe. Although it's unclear the Sun's cycle could influence our weather.

NASA: Tales of Triumph and Disaster - Part 1

40 years ago history was made worldwide, when the first man was landed on the moon. This will tell the ever continuing story of endeavours undertaken by the USA at the forefront of manned and unmanned space exploration.



The Astronauts part of the Mercury Mission

On July 1958 NASA was established, with one simple brief: to beat the Russians in the space race.  Drawn from military training pilots the hope was to get humans safely into space, but quickly and to a deadline.

During the 1950’s the American’s were still trailing the Russians in the space race.  NASA firstly established the Mercury programme to train seven astronauts to be ready for space. One included Alan Shepard who NASA selected for America’s first manned mission into space. Scientists at NASA were shaken as Russia launched their first manned space flight on the 15^th April 1961, only a few weeks before NASA’s first manned mission was to be launched.

On May 5^th Alan Shepard’s flight was still a history-making event. Whereas Yuri Gagarin had only been a ‘passenger’ in the vehicle, Shepard was able to manoeuvre the Freedom 7 space capsule himself.  Shepard made a safe return to Earth with a splashdown at sea and recovery by helicopter, even better still this was all captured on camera and broadcast to millions worldwide. As he returned to mainland America, he was honoured with parades in Washington, New York and Los Angeles.

This historic event signalled the first of many missions by NASA and further joint projects with various contries, including Great Britain, find out more in “NASA: Tales of Triumph and Disaster – Part 2” , coming soon)

The Moon Landing - "One small step for man, one giant leap for human kind"

The Apollo 11 mission was the first to land humans on the moon. Neil Armstrong became the first to step onto the lunar surface on 20th July 1969. Armstrong spent about two and a half hours outside the spacecraft, Buzz Aldrin slightly less. They managed to collect 21.5 kg of lunar material for return to Earth. The third member of the mission, Micheal Collins piloted the command spacecraft alone in orbit until the pair returned to it just under a day later for the trip back to Earth. 

The spacecraft was launched by a Saturn V rocket from the Kennedy Space Center in Florida on 16th July. This mission was the fifth manned mission of NASA's Apollo program. The spacecraft consisted of three parts, the command module (CM) with a cabin for the three astronauts, and the only part that was brought back to earth, the Service Module (SM). This supported the command module for things like propulsion, electrical power, oxygen and water. The last component being the Lunar Module (LM) which landed on the moon. 

After being propelled to the moon, the astronauts were separated from Saturn V and traveled towards the moon for three days until they entered the lunar orbit. Armstrong and Aldrin then moved into the Lunar Module and landed in the Sea of Tranquility. They stayed on the moon for about 21 1/2 hours. The mission ended as they landed in the Pacific Ocean on 24th July. 

US President John F Kennedy set proposed this as a goal in 1961 to the US Congress by saying: "before this decade is out, of landing a man on the Moon and returning him safely to the Earth". This goal was fulfilled in a broadcast live on TV to a world-wide audience which then ended the Space Race. 

Mars' atmosphere was "oxygen rich"

Scientists at NASA have discovered using their Spirit Rover that Mars once had an oxygen rich atmosphere 4 billion years ago. This was 1,500 million years prior to the formation of earth. The scientists came to this conclusion because they had analysed samples that the Spirit Rover had collected, they also compared these samples with Martian meteorites that have crashed into earth. The Scientists then were able to examine the composition of the meteorites and the samples collected, they then discovered a high percentage of oxygen. Also  Mars' distinct red colour, shows evidence of a process called oxidation, which obviously as the name suggests needs a high quantity of the oxygen. It is likely that the Red Planet was warm, wet and rusty, billions of years before Earth's atmosphere became oxygen rich, enough for life to develop on Earth. 

This could mean that life did exist on Mars, and it could mean that at some point we could end up living on Mars!