Harald Franzen
Earth's atmosphere is leaking: around 90 tonnes of material escapes out into space from our planet's upper atmosphere every single day.
So that’s what created the water M: It’s not the collision, that created water. Comets contain water. They’re made up mostly of cosmic dust and water. When they collide with the atmosphere, they break up. And the water they contain rains down to earth. Ocean water came from that ...
Temperature change is one of the greatest in Earth's climate change over a long period of time.It can happen naturally or because of human activities,such as burning gas and coal.Burning these fuels produces carbon dioxide (二氧化碳) and other pollutants into the atmosphere,which...
At the station's orbiting altitudes, Earth's atmosphere is extremely thin, but still thick enough to drag on the ISS and slow it down. Therefore, the ISS must be boosted every so often, lest it veer off-course and lose altitude by decelerating. The Russian Zvezda service module has engine...
In the past, people thought that we couldtake whatever we wantedfrom the planet, without any consequences! Now, we know that’snot true.If we keep taking as much as we want, whenever we want, our planet’s resources could one dayrun out. ...
In previous studies, it was confirmed that simple organic compounds, such as amino acids and nucleobases with a small number of carbon atoms, were synthesized via various prebiotic means, as described below: (1) Electric discharge into the primitive atmosphere (Miller-type experiments) [16,17];...
Vegetation ecosystems play an extremely important role as a bridge for material and energy exchange between the land and the atmosphere [3]; however, they are significantly changing due to the warming climate [4]. It has been shown that climate warming advances spring phenology in forests and ...
For example, light traveling through Earth's atmosphere moves almost as fast as light in a vacuum, slowing down by just three ten-thousandths of the speed of light. But light passing through a diamond slows to less than half its typical speed,PBS NOVAreported. Even so, it travels through ...
When sunlight reaches Earth, our atmosphere scatters and filters different wavelengths. Shorter wavelengths such as blue light are scattered outward, while longer wavelengths like red are bent — or refracted — into Earth's umbra, according to the Natural History Museum. When the moon passes throu...