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Articles by Susannah Darling
NASA develops process to create very accurate eclipse maps
New NASA research reveals a process to generate extremely accurate eclipse maps, which plot the predicted path of the moon's shadow as it crosses the face of Earth. Traditionally, eclipse calculations assume that all observers are at sea level on Earth and that the moon is a smooth sphere that is perfectly symmetrical around its center of mass. As such, these calculations do not take into account different elevations on Earth or the moon's cratered, uneven surface.
Artificial intelligence helps improve NASA's eyes on the Sun
by Susannah Darling, NASA This image shows seven of the ultraviolet wavelengths observed by the Atmospheric Imaging Assembly on board NASA’s Solar Dynamics Observatory. The top row is observations taken from May 2010 and the bottom row shows observations from 2019, without any corrections, showing how the instrument degraded over time.
Artificial Intelligence Helps Improve NASA’s Eyes on the Sun
A group of researchers is using artificial intelligence techniques to calibrate some of NASA's images of the Sun, helping improve the data that scientists use for solar research.
NASA's IRIS Spots Nanojets
In a paper published today in Nature Astronomy, researchers report the first ever clear images of nanojets -- bright thin lights that travel perpendicular to the magnetic structures in the solar atmosphere, called the corona -- in a process that reveals the existence of one of the potential coronal heating candidates: nanoflares.
Nanojets shine light on heating of the Solar Corona
link to original article In a paper published in Nature Astronomy, researchers report the first ever clear images of nanojets – bright thin lights that travel perpendicular to the magnetic structures in the solar atmosphere, called the corona – in a process that reveals the existence of one … This article was originally published on Google News
NASA's IRIS spots nanojets: Shining light on heating the solar corona
X-rays stream off the sun in this image showing observations from by NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, overlaid on a picture taken by NASA's Solar Dynamics Observatory (SDO).
Traveling to the sun: Why won't Parker Solar Probe melt?
Inside that part of the solar atmosphere, a region known as the corona, Parker Solar Probe will provide unprecedented observations of what drives the wide range of particles, energy and heat that course through the region—flinging particles outward into the solar system and far past Neptune. Inside the corona, it's also, of course, unimaginably hot. The spacecraft will travel through material with temperatures greater than a million degrees Fahrenheit while being bombarded with intense sun light.
NASA develops process to create very accurate eclipse maps Original
NASA develops process to create very accurate eclipse maps by Ernie Wright and Susannah Darling for GSFC News Greenbelt MD (SPX) Sep 20, 2024 New NASA research reveals a process to generate extremely accurate eclipse maps, which plot the predicted path of the Moon's shadow as it crosses the face of Earth. Traditionally, eclipse calculations assume that all observers are at sea level on Earth and that the Moon is a smooth sphere that is perfectly symmetrical around its center of mass.
Keep Your Eclipse Glasses to See the Sun's 'Freckles'
You don’t have to wait on the next eclipse for another cool opportunity to look at the Sun — our nearest star puts on quite the show of its own without the help of the Moon. Heliophysics, the field of study devoted to the Sun and its effects on space, is a science that can often be seen and appreciated from Earth.
NASA’s SDO Witnesses a Double Eclipse
Early in the morning of Sept. 1, 2016, NASA’s Solar Dynamics Observatory, or SDO, caught both Earth and the moon crossing in front of the sun. SDO keeps a constant eye on the sun, but during SDO’s semiannual eclipse seasons, Earth briefly blocks SDO’s line of sight each day – a consequence of SDO’s geosynchronous orbit. On Sept. 1, Earth completely eclipsed the sun from SDO’s perspective just as the moon began its journey across the face of the sun.
A Moment in the Sun’s Atmosphere: NASA’s Science During the March 2016 Total Solar Eclipse
As the moon slowly covers the face of the sun on the morning of March 9, 2016, in Indonesia, a team of NASA scientists will be anxiously awaiting the start of totality – because at that moment, their countdown clock begins.
NASA: Understanding the Magnetic Sun
The surface of the sun writhes and dances. Far from the still, whitish-yellow disk it appears to be from the ground, the sun sports twisting, towering loops and swirling cyclones that reach into the solar upper atmosphere, the million-degree corona – but these cannot be seen in visible light. Then, in the 1950s, we got our first glimpse of this balletic solar material, which emits light only in wavelengths invisible to our eyes.
NASA’s SDO Captures Cascading Magnetic Arches
A dark solar filament above the sun’s surface became unstable and erupted on Dec. 16-17, 2015, generating a cascade of magnetic arches. A small eruption to the upper right of the filament was likely related to its collapse. The arches of solar material appear to glow as they emit light in extreme ultraviolet wavelengths, highlighting the charged particles spinning along the sun’s magnetic field lines.
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