From the numerical results, we can find several new findings: (1) the effect of the radiation from power line is limited in a relatively narrow region below the cutoff frequency of the guided mode in ...

For these cases, dependence of attenuation and phase velocity of the first few modes of the earth-ionosphere waveguide on ionospheric height and on electric properties of the ground (which enter a ...

Global warming: The recent and ongoing global average increase in temperature near the Earth’s surface. Warmer temperatures over time change weather patterns and disrupt the usual balance of ...

Earth Day is celebrated on April 22 each year, promoting environmental protection and awareness since 1970. Now celebrating its 55th anniversary, this year's Earth Day theme, "Our Power, Our ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An invisible ...

A European Space Agency report released April 1 studied the space above Earth. The report says that if space debris buildup is not controlled soon, the area surrounding our planet may become so ...

To understand the mantle—the largest layer of Earth’s rocky body—scientists drill deep cores out of the Earth. Scientists drilled the deepest core yet and recovered serpentinized peridotite ...

Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on. "Earth Day really is a symbol of the environmental movement," Sarah ...

The idea proposed by Beadle and his colleagues is that these particles can convert into regular photons within the ionosphere, which would make them detectable using affordable antennae on Earth.