An island or isle is any piece of sub-continental land that is surrounded by water. It is believed that there are over 100,000 islands in the world. It’s difficult to put a figure to the exact number as there are different kinds of them in various water bodies including oceans, seas, lakes, and rivers. There is even an island within a lake that is situated on an island located in a lake on an island. Only 322 of them are larger than 1000 km2 (386 sq mi). Here are the top 18 largest islands on Earth. Why 18? Because this is the number of islands that have a land area of greater than 100,000 square kilometers (38,610 square miles).
Continue reading Top 18 Largest Islands on Earth
Russia’s Progress 70 resupply spacecraft set a milestone for International Space Station operations when it arrived in a record time: just three hours and 40 minutes, or only two Earth orbits (of the ISS). The uncrewed spacecraft delivered the cargo which includes 530 kg of propellant, 52 kg of oxygen gas, 420 kg of water and 1,565 kg of “dry” cargo such as food and other equipment to the space station.
Continue reading Russian spacecraft arrived to the ISS in just 3 hours and 40 minutes
In a recent Nature Sustainability paper, a team of scientists concluded that the Earth can sustain, at most, only 7 billion people at subsistence levels of consumption (and this June saw us at 7.6 billion). Achieving ‘high life satisfaction’ for everyone, however, would transgress the Earth’s biophysical boundaries, leading to ecological collapse.
Continue reading The Earth’s carrying capacity for human life is not fixed
The immense challenge of climate change has caused myopia among a lot of politicians, sending them into a self-destructive state of denial. More quietly, though, that immensity has triggered another kind of myopia, this one among conservationists. In focusing on the staggering planetary impacts of greenhouse emissions, they are losing sight of the other ways that human beings lay a heavy hand on the planet. In particular, they are paying too little attention to the true causes of (and potential solutions to) the loss of species around the world – a massive die-off often referred to as ‘the sixth extinction’.
Continue reading We are missing our chance to stop the sixth mass extinction
The damaging decline of our environment is undoubtedly a pressing concern. The rise in pollution, excess use of energy and our reliance on non-recyclable materials are just the tip of the proverbial iceberg. Whilst positive changes are being made, including supermarkets cutting down the use of plastic bags and the EU’s ban on non-biodegradable products, one area that’s often overlooked is the impact office buildings have on the environment.
Continue reading Reducing the environmental impact of an office building
European Space Agency (ESA) has published the complete Rosetta image archive under a Creative Commons license, which means the complete archive is freely available: you can copy, share, and tweak the content.
Continue reading ESA Has Published Complete Rosetta Image Archive
To able to reach the space, we need rockets. Rocket engines work by action and reaction (“To every action, there is always opposed an equal reaction”Notes 1) and push rockets forward simply by expelling their exhaust in the opposite direction at high speed and can therefore work in the vacuum of space. Space rockets are usually enormous in size, because the bigger the rocket is, the more thrust can produce its engine and can carry more weight into the orbit. Here are the 10 tallest rockets ever launched in the history of space exploration.
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According to a new study published this week in the AGU (American Geophysical Union) journal Geophysical Research Letters, several spots on the East Antarctic Plateau reach temperatures of nearly -100 °C (-148 °F) during the Antarctic winter. Researchers re-examined the data from several Earth-observing satellites and found that the coldest place on Earth is even colder than previously thought.
Continue reading Coldest place on Earth: New satellite data reveals lowest temperature recorded in Antarctica
To put things into a perspective, here are the moons of our solar system (including our moon) and their sizes compared to Earth.
Continue reading The Moons of the Solar System in Perspective
We’ve evolved here on Earth, and for tens of thousands of years, we just thought the Earth is also the universe, or at least the most important and the biggest part of it. Our brains have been adapted to the basic survival needs. So we can deal with the moderately sized objects which have moderate velocity, and we can conceptualize small numbers like 1, 2, 50. But when the numbers get bigger than that, the problem begins: our puny brains cannot conceptualize them anymore. The larger a number grows, the harder it becomes to deal with. Take the age of the Earth, which is almost 4.6 billion years. We don’t have an intuitive sense of what this number means. But, visualization can help: we can better understand things if we visualize them. Author Andy Bergmann just did that. He created a Timeline of Earth to get a better sense of how key events relate in time over our planet’s 4.6 billion year history. It’s hard to get a sense of how vast it is until you can see it laid out visually.
Continue reading The Timeline Of Earth