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Topic: United States
NASA explains What Happens During a Total Solar Eclipse
August 18, 2017 | 
Written by Andrew Good
NASA’s Jet Propulsion Laboratory
Pasadena, CA – It might be the hottest event of the summer: On Monday, the U.S. will see the first solar eclipse visible across both coasts in nearly a century.
The path of totality — where the view of the Sun will be totally blocked by the Moon’s shadow — will cross from Oregon to South Carolina. The event has turned small towns like Twin Falls, Idaho, and Madras, Oregon, into prime vacation destinations. NASA is hosting events in a number of these locations, as well as encouraging teachers to share science with their students.
Jim Lux, a telecommunications specialist at NASA’s Jet Propulsion Laboratory in Pasadena, California, has traveled far and wide to view total eclipses in the past.
Below, he describes what makes them unique experiences.
A total solar eclipse gives scientists a rare opportunity to study the lower regions of the Sun’s corona. These observations can help us understand solar activity, as well as the unexpectedly high temperatures in the corona. (S. Habbal, M. Druckmüller and P. Aniol)
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Dodging the Roadkill: Madison Indiana
Madison, IN – I recently took a weekend trip to ride a few of Kentucky’s motorcycle routes. The routes I chose, began in Madison, Indiana, so that’s where I set up camp.
Madison Indiana is the county seat of Jefferson County Indiana. This beautiful city sits along the Ohio River. It’s population is just over 12,000 people. Madison is one of the core cities of the Louisville-Elizabethtown-Madison Metroplex, which estimates a population of 1.5 million, according to Wikipedia. In 2006, the majority of Madison’s downtown was designated the largest contiguous National Historic Landmark in the United States.
It’s historic downtown district is amazing.
Madison Indiana
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NASA to study Earth’s Ionosphere during Total Solar Eclipse
Written by Lina Tran
NASA’s Goddard Space Flight Center
Greenbelt, MD – On August 21st, 2017, the Moon will slide in front of the Sun and for a brief moment, day will melt into a dusky night. Moving across the country, the Moon’s shadow will block the Sun’s light, and weather permitting, those within the path of totality will be treated to a view of the Sun’s outer atmosphere, called the corona.
But the total solar eclipse will also have imperceptible effects, such as the sudden loss of extreme ultraviolet radiation from the Sun, which generates the ionized layer of Earth’s atmosphere, called the ionosphere. This ever-changing region grows and shrinks based on solar conditions, and is the focus of several NASA-funded science teams that will use the eclipse as a ready-made experiment, courtesy of nature.
The Moon’s shadow will dramatically affect insolation — the amount of sunlight reaching the ground — during the total solar eclipse. (NASA’s Scientific Visualization Studio)
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NASA releases Television Coverage for August 21st Total Solar Eclipse
Written by Dwayne Brown
NASA Headquarters
Washington, D.C. – On Monday, August 21st, 2017, all of North America will be treated to an eclipse of the Sun, and NASA Television will carry it live from coast to coast from unique vantage points on the ground and from aircraft and spacecraft, including the International Space Station. Coverage will be featured during the live four-hour broadcast Eclipse Across America: Through the Eyes of NASA.
Programming begins at 11:00am CDT (noon EDT) with a preview show hosted from Charleston, South Carolina. The main show begins at 12:00pm CDT (1:00pm EDT) and will cover the path of totality the eclipse will take across the United States, from Oregon to South Carolina.
This illustration depicts a rare alignment of the Sun and Moon casting a shadow on Earth. (NASA)
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NASA reports new Study looks at Poor Air Quality and its effects on masking Global Warming
Written by Abigail Nastan
MISR Communications and Applications Specialist
Pasadena, CA – During the 20th century, the average temperature of the continental United States rose by almost 1 degree Fahrenheit (0.5 degree Celsius) — everywhere, that is, except in the Southeast.
There, until the 1980s, the temperature actually decreased slightly. Climate scientists dubbed this peculiar phenomenon the “warming hole,” and it was the cause of much speculation. But beginning in the 1990s, temperatures in the Southeast began to warm again, and in the early years of the 21st century this warming has accelerated.
Looking through smog in downtown Atlanta from midtown. (CC BY-SA 2.0, by Flickr user Ben Ramsey)
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APSU PeayClipse to present “Total Solar Eclipse: Nature’s Stellar Coincidence” at Clarksville’s Movies in the Park
Clarksville, TN – As part of the ongoing PeayClipse lecture series, Austin Peay State University senior physics student Jacob Robertson will present a talk titled, “Total Solar Eclipse: Nature’s Stellar Coincidence.”
The talk will take place at 7:00pm, Saturday, August 19th, 2017 in Liberty Park, prior to the evening’s featured film, “Space Jam.”
APSU senior physics student Jacob Robertson to give “Total Solar Eclipse: Nature’s Stellar Coincidence” talk at Clarksville Parks and Recreations Movie in the Park on August 19th.
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NASA’s Eclipse Balloon Project to simulate life’s ability to survive beyond Earth
Written by Andrew Good
NASA’ Jet Propulsion Laboratory
Pasadena, CA – Steps forward in the search for life beyond Earth can be as simple as sending a balloon into the sky. In one of the most unique and extensive eclipse observation campaigns ever attempted, NASA is collaborating with student teams across the U.S. to do just that.
A larger initiative, NASA’s Eclipse Balloon Project, led by Angela Des Jardins of Montana State University, is sending more than 50 high-altitude balloons launched by student teams across the U.S. to livestream aerial footage of the August 21st, 2017, total solar eclipse from the edge of space to NASA’s website.
This picture of Montana was taken from the stratosphere (84,000 feet or 25,000 meters) during one of Montana Space Grant Consortium’s high-altitude balloon tests on April 19, 2014. (Montana State University)
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NASA Invites You to Become a Citizen Scientist During US Total Solar Eclipse
Written by Rani Gran and Kelsey Wright
NASA’s Goddard Space Flight Center
Greenbelt, MD – NASA invites eclipse viewers around the country to participate in a nationwide science experiment by collecting cloud and air temperature data and reporting it via their phones.
The Global Learning and Observations to Benefit the Environment, or GLOBE, Program is a NASA-supported research and education program that encourages students and citizen scientists to collect and analyze environmental observations. GLOBE Observer is a free, easy-to-use app that guides citizen scientists through data collection.
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NASA gives Safety Tips for viewing Total Solar Eclipse in August
Written by Dwayne Brown / Laurie Cantillo
NASA Headquarters
Washington, D.C. – More than 300 million people in the United States potentially could directly view the Aug. 21 total solar eclipse, and NASA wants everyone who will witness this celestial phenomenon to do so safely.
That Monday, a partial eclipse will be visible in every state. A total solar eclipse, which is when the Moon completely covers the Sun, will occur across 14 states in the continental U.S. along a 70-mile-wide (112-kilometer-wide) swath of the country.
A total solar eclipse, which is when the Moon completely covers the Sun, will occur across 14 states in the continental U.S. on Aug 21, 2017. (NASA)
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Clarksville is prime location for the Great American Eclipse
Clarksville-Montgomery County Residents must take precautions during August 21st event
Clarksville, TN – Clarksville-Montgomery County is in the path of the Great American Eclipse of August 21st, 2017, making this a prime destination for those who want to view this rare astronomical occurrence.
This will be the first coast-to-coast eclipse in 98 years and the first in the continental United States since 1978. The eclipse can only be seen in a path 60 miles wide across the United States, so this will be a once in a lifetime experience to to witness a fascinating natural phenomenon.
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