Space Weather Events Linked To High-Altitude Nuclear Tests

NASA Earth Radio Signals

NASA Earth Radio Signals

While we've left a pretty obvious trace on the face of the planet, the one we've left on our near-space environment is less apparent - but there is a trace, scientists found.

And, based on recently declassified data, the researchers found that these tests were linked to strained utility grids in Hawaii and satellite disruption, among other things.

The Teak test, conducted on August 1, 1958, was eminent for the simulated aurora that came about.

For instance, when the Argus tests were conducted, they were at higher altitudes than previous nuclear tests, pushing harmful particles much further into space.

This detonation, conducted over Johnston Island in the Pacific Ocean, spurred an artificial aurora that was seen by the Apia Observatory in Western Samoa.

According to NASA, the test caused geomagnetic storms detected from Sweden all the way to Arizona, with two high-speed waves of particles traveling at 1,860 miles per second and nearly 500 miles per second, respectively.

On such test was the Teak test of August 1, 1958 (pictured). The tests gave researchers a rare chance to study the interactions of these charged particles with the Earth in a controlled way, which could help give insights into how electromagnetic storms may affect us in the future.

North Korea's Missile Program Is Progressing Faster Than Expected: South Korea
The missile flew 787 kilometres on a trajectory reaching an altitude of 2,111.5 kilometres, the North's KCNA news agency said. North Korea has rebuffed cries for it to cease missile and nuclear testing, calling each of them acts of self defense.

Humans have always been known to shape Earth's landscape and the space that surrounds it, but now scientists at the US National Aeronautics and Space Administration (Nasa) say that humans also can shape the near-space environment with radio communications as well.

The existence of VLF bubble has also been verified by spacecrafts in the space, such as NASA's Van Allen Probes, which study electrons and ions in the near-Earth environment.

Since VLF radio waves are very good at penetrating 40 meters or more into saltwater, they're ideal for submarine communications.

The sun sends out millions of high-energy particles, the solar wind, which races out across the solar system before encountering Earth and its magnetosphere, a protective magnetic field surrounding the planet.

"A number of experiments and observations have figured out that, under the right conditions, radio communications signals in the VLF frequency range can in fact affect the properties of the high-energy radiation environment around the Earth", Phil Erickson, assistant director at the MIT Haystack Observatory, said in a news release.

This lower limit is said to be the "impenetrable barrier" - but, without the presence of the VLF transmissions, scientists suspect the boundary would sit much closer to earth. Data showed that the Van Allen belts have moved further away from Earth since the 1960s, when the VLF use was limited.

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