Results tagged “Space Weather”

When our Sun erupts with giant explosions -- such as bursts of radiation called solar flares -- we know they can affect space throughout the solar system as well as near Earth.

Solar Wind May Affect Satellite Safety

Could the flapping of a butterfly's wings in Costa Rica set off a hurricane in California?

The space surrounding our planet is full of restless charged particles and roiling electric and magnetic fields, which create waves around Earth.

Our Cold War history is now offering scientists a chance to better understand the complex space system that surrounds us. Space weather.

Our ever-changing sun continuously shoots solar material into space. The grandest such events are massive clouds that erupt from the sun, called coronal mass ejections, or CMEs.

NASA has long been a leader in understanding the science of space weather, including research into the potential for induced electrical currents to disrupt our power systems.

New research on solar storms finds that they not only can cause regions of excessive electrical charge in the upper atmosphere above Earth's poles, they also can do the exact opposite: cause regions that are nearly depleted of electrically charged particles.

An international science team says NASA's Fermi Gamma-ray Space Telescope has observed high-energy light from solar eruptions located on the far side of the sun, which should block direct light from these events.

Just hours after the winter solstice, a mass of energetic particles from the Sun smashed into the magnetic field around Earth.

Are Planets Setting Our Sun's Pace?

The Sun's activity is determined by the Sun's magnetic field. Two combined effects are responsible for the latter: The omega and the alpha effect.

For the first time beginning next month, forecasts of the regional effects of solar storms will help protect the power grid and communications satellites, thanks to a new tool developed by researchers at the University of Michigan and Rice University.

A new study by researchers at Embry-Riddle Aeronautical University, funded by the National Science Foundation, has identified for the first time a process by which the solar wind is heated along extended regions of the Earth's magnetic shield as it penetrates through this barrier.

A solar storm that jammed radar and radio communications at the height of the Cold War could have led to a disastrous military conflict if not for the U.S. Air Force's budding efforts to monitor the Sun's activity, a new study finds.

New findings based on a year's worth of observations from NASA's Van Allen Probes have revealed that the ring current an electrical current carried by energetic ions that encircles our planet behaves in a much different way than previously understood.

The Impact of the Solar Wind

From our vantage point on the ground, the sun seems like a still ball of light, but in reality, it teems with activity.

The New Horizons spacecraft sent back over three years worth of measurements of the solar wind the constant flow of solar particles that the sun flings out into space from a region that has been visited by only a few spacecraft.

Space weather scientist Liz MacDonald has seen auroras more than five times in her life, but it was the aurora she didn't see that affected her the most.

On March 9, 1989, a huge cloud of solar material exploded from the sun, twisting toward Earth.

The geomagnetic storming watch for 30 December has been upgraded to a G3 (Strong), with a G1 (Minor) storming watch still in effect for 31 December.

A Mechanism That halts Solar Eruptions

Among the most feared events in space physics are solar eruptions, massive explosions that hurl millions of tons of plasma gas and radiation into space.

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