Pasadena, CA – New NASA satellite imagery captured a hot lava flow from fissure 8 of Hawaii’s Kilauea volcano. The flow from fissure 8 extends from the Leilani Estates to the Pacific Ocean — with main ocean entry points near Ahalanui.
The imagery, from the Advanced Spaceborne Thermal Emission and Reflection (ASTER) radiometer instrument on NASA’s Terra satellite, was taken on Wednesday, July 25th. Vegetation is shown in red, and clouds are white.
NASA’s Jet Propulsion Laboratory
Pasadena, CA – Data collected by NASA’s Juno spacecraft using its Jovian InfraRed Auroral Mapper (JIRAM) instrument point to a new heat source close to the south pole of Io that could indicate a previously undiscovered volcano on the small moon of Jupiter. The infrared data were collected on December 16th, 2017, when Juno was about 290,000 miles (470,000 kilometers) away from the moon.
“The new Io hotspot JIRAM picked up is about 200 miles (300 kilometers) from the nearest previously mapped hotspot,” said Alessandro Mura, a Juno co-investigator from the National Institute for Astrophysics in Rome. “We are not ruling out movement or modification of a previously discovered hot spot, but it is difficult to imagine one could travel such a distance and still be considered the same feature.”
Written by Esprit Smith
Pasadena, CA – The eruption of Kilauea Volcano on the island of Hawaii triggered a number of gas- and lava-oozing fissures in the East Riff Zone of the volcano. The fissures and high levels of sulfur dioxide gas prompted evacuations in the area.
Images taken from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) onboard NASA’s Terra satellite picked up these new fissures.
In the first image, the red areas are vegetation, and the black and gray areas are old lava flows.
Written by Elizabeth Landau
Pasadena, CA – If you could fly aboard NASA’s Dawn spacecraft, the surface of dwarf planet Ceres would generally look quite dark, but with notable exceptions.
These exceptions are the hundreds of bright areas that stand out in images Dawn has returned.
Now, scientists have a better sense of how these reflective areas formed and changed over time — processes indicative of an active, evolving world.
Written by Andrew Good
Pasadena, CA – One of our planet’s few exposed lava lakes is changing, and artificial intelligence is helping NASA understand how.
On January 21st, a fissure opened at the top of Ethiopia’s Erta Ale volcano — one of the few in the world with an active lava lake in its caldera. Volcanologists sent out requests for NASA’s Earth Observing 1 (EO-1) spacecraft to image the eruption, which was large enough to begin reshaping the volcano’s summit.
As it turned out, that spacecraft was already busy collecting data of the lava lake.
Written by Elizabeth Zubritsky
Greenbelt, MD – New NASA research reveals that the giant Martian volcano Arsia Mons produced one new lava flow at its summit every 1 to 3 million years during the final peak of activity.
The last volcanic activity there ceased about 50 million years ago — around the time of Earth’s Cretaceous-Paleogene extinction, when large numbers of our planet’s plant and animal species (including dinosaurs) went extinct.
Written by Andrew Good
Pasadena, CA – Mt. Erebus is at the end of our world — and offers a portal to another.
It’s our planet’s southernmost active volcano, reaching 12,448 feet (3,794 meters) above Ross Island in Antarctica. Temperatures at the surface are well below freezing most of the year, but that doesn’t stop visits from scientists: Erebus is also one of the few volcanoes in the world with an exposed lava lake. You can peer over the lip of its main crater and stare straight into it.
It’s also a good stand-in for a frozen alien world, the kind NASA wants to send robots to someday.
Written by Alan Buis
Pasadena, CA – NASA scientists, including many from NASA’s Jet Propulsion Laboratory, Pasadena, California, are crisscrossing the globe in 2017 — from a Hawaiian volcano to Colorado mountaintops and west Pacific islands — to investigate critical scientific questions about how our planet is changing and what impacts humans are having on it.
Field experiments are an important part of NASA’s Earth science research.
Written by Guy Webster
Pasadena, CA – Scientists have discovered an unexpected mineral in a rock sample at Gale Crater on Mars, a finding that may alter our understanding of how the planet evolved.
NASA’s Mars Science Laboratory rover, Curiosity, has been exploring sedimentary rocks within Gale Crater since landing in August 2012. In July 2015, on Sol 1060 (the number of Martian days since landing), the rover collected powder drilled from rock at a location named “Buckskin.” Analyzing data from an X-ray diffraction instrument on the rover that identifies minerals, scientists detected significant amounts of a silica mineral called tridymite.
Washington, D.C. – When someone says “Once in a Blue Moon,” you know what they mean: Rare, seldom, even absurd.
This year it means “the end of July.”
For the second time this month, the Moon is about to become full. There was one full Moon on July 2nd, and now a second is coming on July 31st. According to modern folklore, whenever there are two full Moons in a calendar month, the second one is “blue.”
Now playing at the Movies
© 2006-2021 Clarksville, TN Online is owned and operated by residents of Clarksville Tennessee.