Sub-Orbital Space Flights & Satellite Exploration
Science & Reason on Facebook: tinyurl.com ESA Space Science: Why go to Mars? Millions of years ago, the primitive environments of Mars and Earth were probably similar, so since life exists on Earth, then we can legitimately consider the hypothesis that it could also have developed on Mars. — Please subscribe to Science & Reason: • www.youtube.com • www.youtube.com • www.youtube.com • www.youtube.com — Signatures of life Where there’s water, there could be life. “Meteorites from Mars that have landed on Earth show clear evidence that conditions appropriate to life did exist on the planet, including in the recent past,” said Colin Pillinger, Consortium Leader for the Beagle 2 lander at the Open University, Milton Keynes, UK. “However, features in the meteorites which have been described as nanofossils are highly controversial. Unfortunately, we cannot be sure that organic matter found in the meteorites is the remnant of organisms that lived on Mars and not due to contamination on Earth. We need to repeat the experiments on rocks that never left the Red Planet.” The Beagle 2 lander would have looked for signatures of life on Mars, whether long-dead or still-living, by measuring the ratio of two different types of carbon in the rock. Biological processes on Earth favour the lighter isotope of carbon, carbon-12, over the heavier carbon-13. Hence, a high carbon-12 to carbon-13 ratio is taken as evidence of life and has been found in rocks up to 4000 million years old, even …
Tags: Express, atmosphere, Methane, biology
Click Watch in HD “NASA’s Hubble Space Telescope has discovered carbon dioxide in the atmosphere of a planet orbiting another star. This is an important step along the trail of finding the chemical biotracers of extraterrestrial life as we know it. The Jupiter-sized planet, called HD 189733b, is too hot for life. But the Hubble observations are a proof-of-concept demonstration that the basic chemistry for life can be measured on planets orbiting other stars. Organic compounds can also be a by-product of life processes, and their detection on an Earth-like planet may someday provide the first evidence of life beyond Earth.”
Tags: Methane, JPL, Life, o2
Life Beyond Earth: Origin And Evolution Of Life In The Universe – Best Of Carl Sagan’s Cosmos (Part 20). Carl Edward Sagan, Ph.D. (1934-1996) was an American astronomer, astrochemist, author, and highly successful popularizer of astronomy, astrophysics and other natural sciences. He pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence (SETI). He is world-famous for writing popular science books and for co-writing and presenting the award-winning 1980 television series “Cosmos: A Personal Voyage”, which has been seen by more than 600 million people in over 60 countries, making it the most widely watched PBS program in history. A book to accompany the program was also published. He also wrote the novel “Contact”, the basis for the 1997 Robert Zemecki’s film of the same name starring Jodie Foster. During his lifetime, Sagan published more than 600 scientific papers and popular articles and was author, co-author, or editor of more than 20 books. In his works, he frequently advocated sceptical inquiry, secular humanism, and the scientific method. • www.carlsagan.com ‘Our Place in the Cosmos’ (ft. Sagan, Dawkins, Kaku, Jastrow)- Symphony of Science- http Carl Sagan – We Are All Connected- www.youtube.com The Size of The Universe- www.youtube.com The Known Universe (Take A Journey through The Stars)- www.youtube.com What Are the Odds that- Aliens Exist? (Find Out)- www.youtube.com CNN:NASA Search For Earth Like Planets & Alien Life- www.youtube.com …
Tags: Light, system, Worlds, zone
This video depicts the relative scale of things and the Universe in factors of ten. We start with the smallest things that science knows. Each following image is in scale ten times larger than the preceding one.
Tags: dark, Matter, tower, science
“Keeping Up With Carbon” is the final episode in the six-part series “Tides of Change”, exploring amazing NASA ocean science to celebrate Earth Science Week 2009. To find out more visit climate.nasa.gov Want more? Subscribe to NASA on itunes! phobos.apple.com Or get tweeted by NASA: twitter.com Carbon is all around us. This unique atom is the basic building block of life, and its compounds form solids, liquids, or gases. Carbon helps form the bodies of living organisms; it dissolves in the ocean; mixes in the atmosphere; and can be stored in the crust of the planet. A carbon atom could spend millions of years moving through this complex cycle. The ocean plays the most critical role in regulating Earths carbon balance, and understanding how the carbon cycle is changing is key to understanding Earths changing climate.
Tags: week, Water, 2009, Center
Life and Death in a Binary Star System. Written by high school students for the 2008 BCCP Cosmology Workshop. Imagine 6 days of learning about the entire history of the universe, from its inception 13.7 billion years ago, to the stages of cosmic evolution; matter and antimatter; the electromagnetic spectrum; dark matter and dark energy; General and Special Relativity; neutrino astrophysics; and nuclear radioactive decay. Then you have to sort through this dense volume of information and …
Tags: education, giant, astronomy, proton-proton
humans into ancient history, ultiamtely arriving into modern day! … universe evolution origin life big bang earth sun solar system humans dna history ancient apes homo galaxy star cells space luca fish carbon cosmic hydrogen gravity supernova quarks planets protocells evolve bacteria cosmos lipids sponge flatworm pikaia reptiles primates mammals afarensis habilis erectus ergaster sapiens ice age agriculture abiogenesis evolutionary probiotic strings quantum physics science theory …
Tags: abiogenesis, ancient, Evolution, DNA
humans into ancient history, ultiamtely arriving into modern day! … universe evolution origin life big bang earth sun solar system humans dna history ancient apes homo galaxy star cells space luca fish carbon cosmic hydrogen gravity supernova quarks planets protocells evolve bacteria cosmos lipids sponge flatworm pikaia reptiles primates mammals afarensis habilis erectus ergaster sapiens ice age agriculture abiogenesis evolutionary probiotic strings quantum physics science theory …
Tags: protocells, molecules, Apes, solar
origin of life, human evolution, ancient history, to modern day! … universe evolution origin life big bang earth sun solar system humans dna history ancient apes homo galaxy star cells space luca fish carbon cosmic hydrogen gravity supernova quarks planets protocells evolve bacteria cosmos lipids sponge flatworm pikaia reptiles primates mammals afarensis habilis erectus ergaster sapiens ice age agriculture abiogenesis evolutionary probiotic strings quantum physics science theory cosmology …
Tags: star, galaxy, hydrogen, habilis
some of the options for sustainable energy, then will focus on two main devices: solar cells and fuel cells. Solar cells convert the energy of the sun directly into electricity, while fuel cells convert chemical energy directly into electricity. Current research at Stanford is studying the use of new materials to develop the next generation of solar cells and fuel cells. The Stanford Summer Science Lecture Series is a set of informal lectures about cutting edge research from four of …
Tags: cell, Falls, niagra, fossil