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    Space Weather Model Simulates Solar Storms from Nowhere

    May 9, 2017, Categories  Astronomy/Space

    Watch the evolution of a stealth CME in this simulation. Differential rotation creates a twisted mass of magnetic fields on the sun, which then pinches off and speeds out into space. The image of the sun is from NASA's STEREO. Colored lines depict magnetic field lines, and the different colors indicate in which layers of the sun's atmosphere they originate. The white lines become stressed and form a coil, eventually erupting from the sun. Credit: NASA's Goddard Space Flight Center/ARMS/Joy Ng, producer

    Watch the evolution of a stealth CME in this simulation. Differential rotation creates a twisted mass of magnetic fields on the sun, which then pinches off and speeds out into space. The image of the sun is from NASA’s STEREO. Colored lines depict magnetic field lines, and the different colors indicate in which layers of the sun’s atmosphere they originate. The white lines become stressed and form a coil, eventually erupting from the sun. Credit: NASA’s Goddard Space Flight Center/ARMS/Joy Ng, producer

    A kind of solar storm has puzzled scientists for its lack of typical warning signs: They seem to come from nowhere, and scientists call them stealth CMEs. Now, scientists have developed a model simulating their evolution...

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    Planetary Waves, first found on Earth, are discovered on Sun

    March 28, 2017, Categories  Astronomy/Space

    Coronal BP detection at three distinct vantage points in space. BP detections by the STEREO and SDO spacecraft taken around 00:00 UT on 2 February 2011 when the entire solar corona could first be seen by all three spacecraft. The top row (a–c) shows coronal images from a plasma formed around 1.5 MK. The small bright concentrations seen in these images are BPs. The bottom row (d–f) shows the same images with respective BP detections15 shown in red (STEREO-Behind), white (SDO) and blue (STEREO-Ahead).

    Coronal BP detection at three distinct vantage points in space. BP detections by the STEREO and SDO spacecraft taken around 00:00 UT on 2 February 2011 when the entire solar corona could first be seen by all three spacecraft. The top row (a–c) shows coronal images from a plasma formed around 1.5 MK. The small bright concentrations seen in these images are BPs. The bottom row (d–f) shows the same images with respective BP detections15 shown in red (STEREO-Behind), white (SDO) and blue (STEREO-Ahead).

    Waves may influence space weather, offer a source of predictability...

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    First Solar Images from NOAA’s GOES-16 Satellite

    March 2, 2017, Categories  Astronomy/Space

    These images of the sun were captured at the same time on Jan. 29, 2017 by the six channels on the SUVI instrument on board GOES-16 and show a large coronal hole in the sun's southern hemisphere. Each channel observes the sun at a different wavelength, allowing scientists to detect a wide range of solar phenomena important for space weather forecasting. Credit: NOAA

    These images of the sun were captured at the same time on Jan. 29, 2017 by the six channels on the SUVI instrument on board GOES-16 and show a large coronal hole in the sun’s southern hemisphere. Each channel observes the sun at a different wavelength, allowing scientists to detect a wide range of solar phenomena important for space weather forecasting. Credit: NOAA

    The first images from the Solar Ultraviolet Imager or SUVI instrument aboard NOAA’s GOES-16 satellite have been successful, capturing a large coronal hole on Jan. 29, 2017...

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    New Space Weather Model helps Simulate Magnetic Structure of Solar Storms

    January 28, 2017, Categories  Astronomy/Space

    These animated images show the propagation of a CME as it erupts from the sun and travels through space, comparing actual NASA and ESA's SOHO satellite observations on the right to the simulation from the new CME-modeling tool at the Community Coordinated Modeling Center on the left. SOHO observed this CME on March 7, 2011. Credit: NASA/CCMC/University of Michigan/Joy Ng

    These animated images show the propagation of a CME as it erupts from the sun and travels through space, comparing actual NASA and ESA’s SOHO satellite observations on the right to the simulation from the new CME-modeling tool at the Community Coordinated Modeling Center on the left. SOHO observed this CME on March 7, 2011. Credit: NASA/CCMC/University of Michigan/Joy Ng

    The dynamic space environment that surrounds Earth – the space our astronauts and spacecraft travel through – can be rattled by huge solar eruptions from the sun, which spew giant clouds of magnetic energy and plasma, a hot gas of electrically charged particles, out into space. The magnetic field of these solar eruptions are difficult to predict and can interact with Earth’s magnetic fields, causing space weather effects.

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