This handout image provided by NASA, taken Sunday night, Jan. 22, 2012, shows a solar flare erupting on the Sun's northeastern hemisphere. Space weather officials say the strongest solar storm in more than six years is already bombarding Earth with radiation with more to come. The Space Weather Prediction Center in Colorado observed a flare Sunday night at 11 p.m. EST. Physicist Doug Biesecker said the biggest concern from the speedy eruption is the radiation, which arrived on Earth an hour later. It will likely continue through Wednesday. It's mostly an issue for astronauts' health and satellite disruptions. It can cause communication problems for airplanes that go over the poles. (AP Photo/NASA)
The strongest geomagnetic storm in more than six years was forecast to hit Earth's magnetic field on Tuesday, and it could affect airline routes, power grids and satellites.A coronal mass ejection - a big chunk of the Sun's atmosphere - was hurled toward Earth on Sunday, driving energized solar particles at about 5 million miles an hour (2,000 km per second), about five times faster than solar particles normally travel, the center's Terry Onsager said."When it hits us, it's like a big battering ram that pushes into Earth's magnetic field," Onsager said from Boulder, Colorado. "That energy causes Earth's magnetic field to fluctuate."
The Solar Dynamics Observatory captures an M8.7 class flare in a handout photo released by NASA January 23, 2012.
REUTERS/NASA/SDO/AIA/Handout
This energy can interfere with high frequency radio communications used by airlines to navigate close to the North Pole in flights between North America, Europe and Asia, so some routes may need to be shifted, Onsager said.It could also affect power grids and satellite operations, the center said in a statement. Astronauts aboard the International Space Station may be advised to shield themselves in specific parts of the spacecraft to avoid a heightened dose of solar radiation.
SDO's AIA instrument at 171 Angstrom shows the current conditions of the quiet corona and upper transition region of the Sun as seen in a handout photo released by NASA January 23, 2012.
REUTERS/NASA/SDO/AIA/Handout
In this handout from the NOAA/National Weather Service's Space Weather Prediction Center, shows the coronal mass ejection (CME) erupting from the sun late January 23, 2012. The flare is reportedly the largest since 2005 and is expected to affect GPS systems and other communications when it reaches the Earth's magnetic field in the morning of January 24. (Photo by NOAA/National Weather Service's Space Weather Prediction Center via Getty Images)
The space weather center said the geomagnetic storm's intensity would probably be moderate or strong, levels two and three on a five-level scale, five being the most extreme.
Text Courtesy : Reuters
No comments:
Post a Comment