If you need simple explanations on space-related subjects which smoothly expand into more detail, these guys are brilliant:
https://www.youtube.com/user/Kurzgesagt
https://www.youtube.com/user/Kurzgesagt
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Agreed. If it took us 9.5 years to get to Pluto which is 3 billion miles away then how long would it take to get to an inhabited planet. Even Proxima Centauri (our nearest star apart from the Sun) is 4.2 light years away. Pluto is roughly 5 light hours away.Not meaning to sound crazy here but if there have been Aliens visiting Earth in this amazing technology I'm struggling to think how we're going to do it in the near future. I mean it's ridiculously far away.
Agreed. If it took us 9.5 years to get to Pluto which is 3 billion miles away then how long would it take to get to an inhabited planet. Even Proxima Centauri (our nearest star apart from the Sun) is 4.2 light years away. Pluto is roughly 5 light hours away.
Something I heard the other night. Our galaxy, the Milky Way has 500 billion stars and the observable universe has 170 billion galaxies. That is a lot of stars.
On second thoughts, I've got some sympathy with Librarian but not for the reason given above.
It's more that I suspect he'll have a bad head tomorrow.
The spacecraft which made a spectacular landing on a comet last year has discovered a rich array of carbon compounds.
One leading scientist has even described the chemicals as "a frozen primordial soup".
This supports the theory that comets may have seeded the early Earth with the ingredients for life.
The findings came after the lander, known as Philae, touched down on comet Churyumov-Gerasimenko 67P in November.
It was dropped by the European Space Agency's Rosetta "mothership" in the climactic stage of a ten-year mission.
Results from the lander's seven instruments are published in a special collection of papers in the journal Science.
One team running a device called COSAC found no fewer than 16 organic compounds, four of which had not been known to exist on comets before.
Ancestral material
Prof Ian Wright of the Open University, who leads another instrument, Ptolemy, said the results were "really interesting".
"I see this cometary material that we're analysing as frozen primordial soup. It's the kind of stuff that if you had it, and warmed it up somehow, and put it in the right environment, with the right conditions, you may eventually get life forming out of it.
"What we may be looking at here is our abiological ancestral material - this is stuff that went into the mix to produce life.
"In many ways it's quite a humbling thing to be working on, because this is life before life happened."
Read More: http://www.bbc.co.uk/news/science-environment-33720951
Agreed. If it took us 9.5 years to get to Pluto which is 3 billion miles away then how long would it take to get to an inhabited planet. Even Proxima Centauri (our nearest star apart from the Sun) is 4.2 light years away. Pluto is roughly 5 light hours away.
Something I heard the other night. Our galaxy, the Milky Way has 500 billion stars and the observable universe has 170 billion galaxies. That is a lot of stars.
You can if you live under Queens Drive flyover.A really good sighting of the international space station is forecast for around 21:50 this evening...not everyday you can watch something doing 17500 mph over your house