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\title{Science AMA Series: We're NASA scientists. Ask us anything about the
science of the Aug. 21 total solar eclipse!}



\author[1]{NASASunEarth }%
\author[1]{r/Science AMAs}%
\affil[1]{Affiliation not available}%


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  \date{April 23, 2026}


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\begin{abstract}
Edit 12:46 PM ET: We are signing off! Thanks so much for all your
questions. Remember to check out eclipse2017.nasa.gov/safety to make
sure you are ready to watch the eclipse safely! Happy eclipse watching!
Edit 11:04 AM ET: We're live! On Aug. 21, 2017, all of North America
will have the chance to see a partial solar eclipse. Along a narrow,
70-mile-wide track called the path of totality, the Moon will totally
block the Sun, revealing the Sun's comparatively faint outer atmosphere
-- the corona. Total solar eclipses like this are a rare chance for
solar scientists to study this region of the Sun, since we can't
ordinarily see it from the ground or with satellite instruments. The
sudden blocking of light also gives Earth scientists a rare chance to
track how Earth's atmosphere responds to the Sun's radiation. Find out
more about NASA's eclipse science (and how to watch the eclipse) at
eclipse2017.nasa.gov. Noah Petro I first became interested in Geology as
a student at Fox Lane High School in Bedford, NY. It was while I was a
student at Bates College that I was introduced to the field of planetary
geology. Following my PhD work at Brown University I came to NASA
Goddard as a NASA Post-Doc. Alexa Halford I am a contractor at NASA
Goddard. Throughout my education I have been lucky to work at JPL NASA
looking at Uranus's moons and study Saturn on the Cassini mission at the
South West Research Institute. Today I stick a bit closer to home
studying the Earth's magnetic field and its space weather phenomena.
Mitzi Adams I am a solar scientist for NASA's Marshall Space Flight
Center (MSFC), where I study the magnetic field of the Sun and how it
affects the upper layer of the solar atmosphere, the corona. With a
professional interest in sunspot magnetic fields and coronal bright
points, friends have labelled me a ``solar dermatologist''. Bill Cooke
The head of NASA's Meteoroid Environment Office, I help NASA in placing
meteoroid protection on spacecraft and construct meteor shower forecasts
for unmanned space vehicles and the International Space Station. While a
graduate student at the University of Florida, I worked on instruments
flying on board balloons, the Space Shuttle, Giotto (European mission to
Halley's Comet), and LDEF. After obtaining my PhD in Astronomy, I came
to work at Marshall Space Flight Center as a member of the Space
Environments Team, where I became an acknowledged expert in meteors and
meteoroids. I am one of the many NASA astronomers interacting with the
public on the upcoming solar eclipse. Jay Herman I am an atmospheric
scientist working on several projects. Two of them are of interest to
the eclipse or other atmospheric questions. 1) The Pandora Spectrometer
Instrument that measures the solar spectrum and derives the amount of
trace gases in the atmosphere, such as ozone, nitrogen dioxide, and
formaldehyde, and 2) The DSCOVR/EPIC spacecraft instrument that observes
the entire sunlit globe from sunrise to sunset from the Earth-Sun
Lagrange-1 point (1 million miles from earth). We derive both
atmospheric and surface properties from EPIC, and we will see the Moon's
shadow during the upcoming eclipse. Guoyong Wen I am an atmospheric
scientist interested in the way radiation passes through the atmosphere.
The experiment we are planning to perform is a combination of theory and
measurements to see if they match. For this purpose we are using an
advanced radiative transfer calculation in three dimensions and
measurements from the ground and a spacecraft. Hopefully, the
calculations and data will match. If not, we can learn about whatever
may be missing. The result will be improved calculation capability. Edit
9:18 AM ET: Added Jay Herman's bio Edit 11:11 AM ET: Added Guoyong Wen's
bio%
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