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Space and stuff
- Thread starter rascal
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-Rob-
Player Valuation: £15m
Paris
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BREAKING NEWS - Things look really small from a long, long, long way away
roydo
in memoriam - 1965-2024
Love that. Reminds me of that quote by some NASA bloke about every single human being that has ever lived, lived on that dot.
He put it a bit better though.
BBC World Service - 13 Minutes to the Moon, Apollo 13, S2 Ep.01 Time bomb: Apollo 13
“Houston, we’ve had a problem.” To ignite catastrophe takes the flick of a single switch.
A moon series on BBC World Service, this one is about Apollo 13
Zezti
Player Valuation: £70m
Wasp-76b: The exotic inferno planet where it 'rains iron'
Astronomers study an exotic planet where they suspect iron droplets fall through the atmosphere.
www.bbc.co.uk
Yarrgh
Player Valuation: £70m
International Space Station
See the International Space Station! As the third brightest object in the sky the space station is easy to see if you know when to look up.
Just watched the space station from the park. Eerily quiet out there but enjoyed seeing it.
International Space Station
See the International Space Station! As the third brightest object in the sky the space station is easy to see if you know when to look up.spotthestation.nasa.gov
Just watched the space station from the park. Eerily quiet out there but enjoyed seeing it.
Ive seen it about 3 times and even though I know what it is, I think it's a bloody magnificent thing to see regardless of age. What struck me was the speed of it, I thought it would look like it was going a lot slower due to how far away it was but it still glides at a decent pace.
Amazing to think there's a few people just floating around earth seeing it in all its beauty and tranquility whilst we are all down here couped up in our houses and fearful of what the future may bring.
aazak
Player Valuation: £20m
Nasa has shared the best snaps of Earth from space
These interstellar pictures will boggle the eyes and the mind.
NASA’s Earth Observatory turns 20 this year, and to celebrate they’re running a competition to find the best shot ever taken of Earth from space.
The 32 nominees range from digital pics by astronauts to satellites snaps from across the solar system, and the public will vote round-by-round until a winner is crowned. The competition is well underway, and you can vote here.
In the meantime, here’s our pick of the contestants, from awe-inspiring auroras to volcanic eruptions beneath the surface of the sea…
(NASA Earth Observatory/PA)
An enormous cloud of ash billows from the crater of Raikoke Volcano on the Kuril Islands, off the coast of the Kamchatka Peninsula in the Russian Far East. The picture was taken in 2019, by astronauts on the International Space Station.
(NASA Earth Observatory/PA)
A composite ‘night light’ image of Earth, which filters out moonlight, seasonal vegetation, atmospheric emissions, ice coverage, and cloud coverage to show the light emitted by humans as it really is.
(NASA Earth Observatory/PA)
A satellite image of Atafu Atoll, a eight-kilometre wide Pacific territory of New Zealand, formed from coral reefs around the crater of a extinct volcano. The islet has an average elevation of barely two metres, so amid rising sea levels its future is uncertain.
(NASA Earth Observatory/PA)
A panorama of the Earth displaying aerosols – specks of airborne matter – on August 23, 2018. The blue dot to the west is Hurricane Lane, and the blue dots to the east are typhoons Soulik and Cimaron. The purple patches in the centre are Saharan dust, while the red streaks over American and Africa show wildfires and agricultural burning respectively…
(NASA Earth Observatory/PA)
A dazzling portrait of the aurora australis (the ‘Southern Lights’) captured by astronauts on the International Space Station as it crossed the Indian Ocean. Parts of the space station are visible in the top part of the image.
(NASA Earth Observatory/PA)
A fully illuminated image of the dark side of the moon, as it passes between a deep space climate observatory and Earth. This image was taken roughly 1 million miles above the world’s surface.
(NASA Earth Observatory/PA)
A bolt of lightning flashes over the Middle East. The brightest patch of light is Kuwait City, and the others are cities in Saudi Arabia. In total, the Earth’s atmosphere witnesses roughly 50 lightning flashes per second.
(NASA Earth Observatory/PA)
The textures on this image of the Andaman Sea show the effect of ‘internal waves’ – giant movements of water beneath the surface of the sea.
(NASA Earth Observatory/PA)
A composite of 165 layered images taken by the Cassini spacecraft in 2006, this picture shows the far side of Saturn and its many rings. You can just about see Earth – a minuscule speck of light to the left of the planet, just inside the penultimate ring.
(NASA Earth Observatory/PA)
An underwater volcanic eruption off the coast of El Hierro, the southernmost Canary Island. The summit of the volcano is roughly 120 metres from the surface, and 210 metres from the ocean floor. At the time of the photo the volcano had already been erupting for four months.
(NASA Earth Observatory/PA)
A bird’s eye view of Paris after dark, taken from the International Space Station. A grid of brightly-lit city streets, Paris is one the two brightest light clusters in Western Europe, the other being London. The dark polygons are mostly city parks.
(NASA Earth Observatory/PA)
A snapshot of the globe, split into eastern and western hemispheres. These pictures were collated from several different NASA missions and assembled by a team of scientists and graphic artists…
(NASA Earth Observatory/PA)
An erupting volcano in Russia’s remote Kamchatka peninsula. Most satellite images point vertically downwards, but this shot was taken at an oblique angle from the International Space Station..
NASA’s Earth Observatory turns 20 this year, and to celebrate they’re running a competition to find the best shot ever taken of Earth from space.
The 32 nominees range from digital pics by astronauts to satellites snaps from across the solar system, and the public will vote round-by-round until a winner is crowned. The competition is well underway, and you can vote here.
In the meantime, here’s our pick of the contestants, from awe-inspiring auroras to volcanic eruptions beneath the surface of the sea…
An enormous cloud of ash billows from the crater of Raikoke Volcano on the Kuril Islands, off the coast of the Kamchatka Peninsula in the Russian Far East. The picture was taken in 2019, by astronauts on the International Space Station.
A composite ‘night light’ image of Earth, which filters out moonlight, seasonal vegetation, atmospheric emissions, ice coverage, and cloud coverage to show the light emitted by humans as it really is.
A satellite image of Atafu Atoll, a eight-kilometre wide Pacific territory of New Zealand, formed from coral reefs around the crater of a extinct volcano. The islet has an average elevation of barely two metres, so amid rising sea levels its future is uncertain.
A panorama of the Earth displaying aerosols – specks of airborne matter – on August 23, 2018. The blue dot to the west is Hurricane Lane, and the blue dots to the east are typhoons Soulik and Cimaron. The purple patches in the centre are Saharan dust, while the red streaks over American and Africa show wildfires and agricultural burning respectively…
A dazzling portrait of the aurora australis (the ‘Southern Lights’) captured by astronauts on the International Space Station as it crossed the Indian Ocean. Parts of the space station are visible in the top part of the image.
A fully illuminated image of the dark side of the moon, as it passes between a deep space climate observatory and Earth. This image was taken roughly 1 million miles above the world’s surface.
A bolt of lightning flashes over the Middle East. The brightest patch of light is Kuwait City, and the others are cities in Saudi Arabia. In total, the Earth’s atmosphere witnesses roughly 50 lightning flashes per second.
The textures on this image of the Andaman Sea show the effect of ‘internal waves’ – giant movements of water beneath the surface of the sea.
A composite of 165 layered images taken by the Cassini spacecraft in 2006, this picture shows the far side of Saturn and its many rings. You can just about see Earth – a minuscule speck of light to the left of the planet, just inside the penultimate ring.
An underwater volcanic eruption off the coast of El Hierro, the southernmost Canary Island. The summit of the volcano is roughly 120 metres from the surface, and 210 metres from the ocean floor. At the time of the photo the volcano had already been erupting for four months.
A bird’s eye view of Paris after dark, taken from the International Space Station. A grid of brightly-lit city streets, Paris is one the two brightest light clusters in Western Europe, the other being London. The dark polygons are mostly city parks.
A snapshot of the globe, split into eastern and western hemispheres. These pictures were collated from several different NASA missions and assembled by a team of scientists and graphic artists…
An erupting volcano in Russia’s remote Kamchatka peninsula. Most satellite images point vertically downwards, but this shot was taken at an oblique angle from the International Space Station..
...then why arent they here yet, is the paradox.
They'll be out there, but, not as many as some think, the distances vast, literally light years, are made vaster by the relative scarcity of life.
The nearest star to us is 4(?) light years away...and that's at full speed of light - then 4 back
But in Einsteinian physics you have to speed up then to as fast as you can then slow down, so much longer than 4 years.
Some maths geek will know how long it actually is, but its longer than 4 years there and 4 years back - 10?, 15?, 20?
Bernards star is oft touted as a possibility. This is 28 ly...add your speed up /slow down thing + return trip 70yrs, 100yrs, 120yrs?
(There may be some relativistic gains and losses in this but until somebody does it, we'll never know.)
Short version;
Einstein says you can't go faster than light.
Distances between civilisations are too big for none FLT travel.
Thus
FTL is impossible
Note;This may be 'logic' falsely applied
degsy's paradox; there is no thing as FLT, if there was they'd be here by now
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