About 2,400 massive stars in the centre of the nebula produce intense radiation and powerful 'winds' of ejected material. Stars are immense objects - over 99% of the mass in our solar system is in our Sun - and gravity squeezes them. Things that are made at high temperatures in the atmosphere of stars are resistant to acid and therefore left behind. From black holes to dining experiences on the International Space Station, this wonderful volume from a prize-winning scientist and broadcaster collates tons of thrilling information for aspiring astronauts. Mae’r llyfr wedi’i drefnu’n dair adran – Y Bydysawd, Ein Cyfundrefn yr Haul a Bodau Dynol yn y Gofod – sy’n golygu bod darllenwyr yn gallu picio i mewn i ateb unrhyw gwestiynau penodol sydd ganddyn nhw.

In 1987 there was a supernova that actually made it possible for scientists to watch and record a ring of material being ejected, but this kind of occurrence is rare. This process has been going on for something like 13 billion years and our solar system is thought to have formed only 4.Organised into three sections: The Universe, Our Solar System and Humans in Space, readers can dip in and out to answer any specific questions they may have, or browse through as many questions and answers as they like at one time.

Intrepid wildlife reporter Andy Seed is back with another collection of interviews for which he has risked personal safety, and gotten seriously wet, while talking to the giants of the oceans. Most of the elements of our bodies were formed in stars over the course of billions of years and multiple star lifetimes. The Tarantula Nebula, also known as 30 Doradus, is a star-forming region in the Large Magellanic Cloud, a small galaxy close to the Milky Way. We use cook ies to give you the best online experience and to show personalised content and marketing. When stars die and lose their mass, all the elements that had been generated inside are swept out into space.

This is the first time in Earth's history that a single species - humanity - has brought such disaster upon the natural world. We find it in the really, really pristine, primitive meteorites that were never altered on asteroids in the early solar system,' Ashley says. Meanwhile, the burning inside a star creates energy which counteracts the squeeze of gravity which is why our sun is stable.

Fill out the form below and we'll work with our scientists to answer some of them in our online magazine Discover or on our YouTube channel. Invisible to the human eye, a single speck of this very pure, original stardust (known as a pre-solar grains, because they are older than our Sun) is only a few microns in size - 100 times smaller than the width of a human hair. The other way to study the life cycle of stars is by finding samples of cosmic dust and observing them through an electron microscope. When that happens to really big stars you can get some really, really spectacular supernovas,' Ashley says. Our volunteers come from a variety of backgrounds, but they have plenty in common too, including a willingness to give up their time to support an organisation they believe in, an interest in STEM or conservation and an enthusiasm for sharing their interest with others.She spoke about her challenges at school, her big dreams that had driven her to pursue space science, and the dreams she still has, such as travelling to outer space. The next generation of seeded stars were then able to produce other, heavier elements such as carbon, magnesium and nearly every element in the periodic table. Mae’r llyfr rhagorol hwn yn cyflwyno atebion Dr Maggie i rai cwestiynau penigamp, o ‘Wnaeth rhywun yrru car ar y lleuad? Captured by NASA's Spitzer Space Telescope in 2011, this image of the North America Nebula shows a cluster of young stars (about one million years old). From whether there are rainbows on other planets to what dinner tastes like on the International Space Station, this book is packed full of fabulous facts, mind-blowing insights and engaging explanations from the renowned space scientist.