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Recent Articles
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Topic: Volcanoes
The image reveals a hellish landscape: a young surface with more volcanoes than any other body in the solar system, gigantic rifts, towering mountain belts and temperatures hot enough to melt lead. ![]() Venus hides a wealth of information that could help us better understand Earth and exoplanets. NASA’s JPL is designing mission concepts to survive the planet’s extreme temperatures and atmospheric pressure. This image is a composite of data from NASA’s Magellan spacecraft and Pioneer Venus Orbiter. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA says Mars, Earth can teach us a lot about LifeNASA Jet Propulsion Laboratory
There was a time when their resemblance was uncanny: Both were warm, wet and shrouded in thick atmospheres. But 3 or 4 billion years ago, these two worlds took different paths. We may soon know why they went their separate ways. NASA’s InSight spacecraft will arrive at the Red Planet on Monday, November 26th, 2018 and will allow scientists to compare Earth to its rusty sibling like never before. ![]() This composite image of Earth and Mars was created to allow viewers to gain a better understanding of the relative sizes of the two planets. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA lists Four Uses for ECOSTRESS measurementsWritten by Carol Rasmussen
Unusual heat can be a warning sign of important changes and concerns in many fields of research besides botany. Here are four other areas where ECOSTRESS’s precise temperature measurements could make a difference. ![]() ECOSTRESS’s precise temperature measurements could be helpful for other things besides studying plants’ heat stress, such as spotting new volcanic fissures and hotspots during an eruption. (USGS) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars InSight Lander will study the Deep Interior of MarsNASA’s Jet Propulsion Laboratory
NASA has a long and successful track record at Mars. Since 1965, it has flown by, orbited, landed and roved across the surface of the Red Planet. What can InSight — planned for launch in May — do that hasn’t been done before? «Read the rest of this article» Sections: Technology | No Comments
NASA prepares for future Satellite by studying Coral Reefs of HawaiiWritten by Alan Buis
The advantages of studying active volcanoes from the air rather than the ground are obvious. Coral reefs may not offer the same risks in a close encounter that volcanoes do, but there’s another good reason to study them by remote sensing: they’re dotted across thousands of square miles of the globe. ![]() NASA coral reef studies in Hawaii this winter will help scientists understand this unique environment. (NOAA) «Read the rest of this article» Sections: Technology | No Comments
NASA looks back at years of Jupiter ObservationsWritten by Ashley Morrow
One of the brightest objects in the night sky, Jupiter has enthralled humans since ancient times. Today, scientists believe that learning more about the planet may be the key to discovering our solar system’s origins and formation. «Read the rest of this article» Sections: Technology | No Comments
NASA research shows moon Io’s atmosphere collapsing when in Jupiter’s ShadowNASA Headquarters
“This research is the first time scientists have observed this remarkable phenomenon directly, improving our understanding of this geologically active moon,” said Constantine Tsang, a scientist at the Southwest Research Institute in Boulder, Colorado. The study was published August 2nd in the Journal of Geophysical Research. ![]() Artist’s concept of the atmospheric collapse of Jupiter’s volcanic moon Io, which is eclipsed by Jupiter for two hours of each day (1.7 Earth days). The resulting temperature drop freezes sulfur dioxide gas, causing the atmosphere to “deflate,” as seen in the shadowed area on the left. (SwRI/Andrew Blanchard) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Mars Reconnaissance Orbiter discovers evidence of Ancient Volcanoes on MarsWritten by Guy Webster
The research about these volcanoes helps show there was extensive ice on ancient Mars. It also adds information about an environment combining heat and moisture, which could have provided favorable conditions for microbial life. Sheridan Ackiss of Purdue University, West Lafayette, Indiana, and collaborators used the orbiter’s mineral-mapping spectrometer to investigate surface composition in an oddly textured region of southern Mars called “Sisyphi Montes.” ![]() This graphic illustrates where Mars mineral-mapping from orbit has detected minerals that can indicate where a volcano erupted beneath an ice sheet. The site is far from any ice sheet on modern Mars, in an area where unusual shapes have been interpreted as a possible result of volcanism under ice. (NASA/JPL-Caltech/JHUAPL/ASU) «Read the rest of this article» Sections: Technology | No Comments
NASA Spacecrafts orbiting Mars make revealing Gravity Map of the Red PlanetWritten by William Steigerwald / Nancy Neal JonesNASA’s Goddard Space Flight Center
“Gravity maps allow us to see inside a planet, just as a doctor uses an X-ray to see inside a patient,” said Antonio Genova of the Massachusetts Institute of Technology (MIT), Cambridge. “The new gravity map will be helpful for future Mars exploration, because better knowledge of the planet’s gravity anomalies helps mission controllers insert spacecraft more precisely into orbit about Mars” ![]() This Mars map shows variations in thickness of the planet’s crust, the relatively thin surface layer overlying the mantle of the planet. It shows unprecedented detail derived from new mapping of variations in Mars’ gravitational pull on orbiters. (NASA/GSFC/Scientific Visualization Studio) «Read the rest of this article» Sections: Technology | No Comments
NASA helps maintain International Terrestrial Reference FrameWritten by Alan Buis
Since some of these changes amount to only millimeters per year, scientists must make very precise measurements of the landscape and ocean in space and time in order to study their evolution and help mitigate their impacts. The foundation for these precision measurements is the terrestrial reference frame, which serves the same purpose as landmarks along a trail. Earth-orbiting satellites and ground-based instruments use this reference system to pinpoint their own locations and, in turn, those of the features they are tracking. ![]() Sites around the world (yellow dots) contributed data and serve as “landmarks along a trail” for the newest update to a global standard called the International Terrestrial Reference Frame. Each site conducts precision measurements using at least one and up to four geodetic techniques. (NASA/Earth Observatory/GSFC) «Read the rest of this article» Sections: Technology | No Comments
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