Results tagged “space weather”

Scientists have combined NASA data and cutting-edge image processing to gain new insight into the solar structures that create the Sun's flow of high-speed solar wind, detailed in new research published today in The Astrophysical Journal.

A phenomenon first detected in the solar wind may help solve a long-standing mystery about the sun: why the solar atmosphere is millions of degrees hotter than the surface.

In direct contradiction to the official forecast, a team of scientists led by the National Center for Atmospheric Research (NCAR) is predicting that the Sunspot Cycle that started this fall could be one of the strongest since record-keeping began.

At the edge of space, the ever-growing fleet of satellites in low-Earth orbit are locked in a constant, precarious battle with friction.

A Large Sunspot For Thanksgiving

On November 18 scientists from the US National Science Foundation's (NSF's) National Solar Observatory (NSO) predicted the arrival of a large sunspot just in time for Thanksgiving.

One of the first things people want to know before taking a trip is what the weather will be like wherever they are headed.

In 2018, a new aurora-like discovery struck the world. From 2015 to 2016, citizen scientists reported 30 instances of a purple ribbon in the sky, with a green picket fence structure underneath.

New research shows that sunspots and other active regions can change the overall solar emissions.

Solar storm analysis carried out by an army of citizen scientists has helped researchers devise a new and more accurate way of forecasting when Earth will be hit by harmful space weather.

The Sun is our star and has a profound influence on our planet, life, and civilization.

Studying Extreme Space Weather Events

Coronal Mass Ejections are among the most energetic eruptive phenomena in our solar system and the main source of major space weather events.

Scientists have developed a new prediction of the shape of the bubble surrounding our solar system using a model developed with data from NASA missions.

Solar activity varies in 11-year cycles. As the activity cycle switches to a new one, the Sun is usually very calm for several years.

Which way the wind blows in space has new importance for astronaut safety at the Moon.

Extreme space weather events can significantly impact systems such as satellites, communications systems, power distribution and aviation.

Space weather forecasters need to predict the speed of solar eruptions, as much as their size, to protect satellites and the health of astronauts, scientists have found.

On May 29, 2020, a family of sunspots -- dark spots that freckle the face of the Sun, representing areas of complex magnetic fields -- sported the biggest solar flare since October 2017.

A new machine-learning computer model accurately predicts damaging radiation storms caused by the Van Allen belts two days prior to the storm, the most advanced notice to date, according to a new paper in the journal Space Weather.

A new study led by the University of Hawai'i (UH) at Mānoa has helped refine understanding of the amount of hydrogen, helium and other elements present in violent outbursts from the Sun, and other types of solar "wind," a stream of ionized atoms ejected from the Sun.

A New Source Of Space Weather

Beyond Earth's atmosphere are swirling clouds of energized particles -- ions and electrons -- that emanate from the sun. This "solar wind" buffets the magnetosphere, the magnetic force field that surrounds Earth.

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