![]() | |||
| |||
|
|||
Recent Articles
|
Topic: Oceans
“Our fundamental goal with Sentinel-6 is to measure the oceans, but the more value we can add, the better,” said Josh Willis, the mission’s project scientist at NASA’s Jet Propulsion Laboratory in Southern California. “It’s not every day that we get to launch a satellite, so collecting more useful data about our oceans and atmosphere is a bonus.” ![]() The Sentinel-6 Michael Freilich spacecraft undergoes tests at its manufacturer Airbus in Friedrichshafen, Germany, in 2019. The white GNSS-RO instrument can be seen attached to the upper left portion of the front of the spacecraft. (Airbus) «Read the rest of this article» Sections: Technology | No Comments
NASA reports Testing Complete on New Ocean Satellite
But first, engineers need to ensure that the spacecraft can survive the rigors of launch and of operating in the harsh environment of space. That’s where meticulous testing comes in. At the end of May, engineers finished putting the spacecraft – which is being built in Germany – through a battery of tests that began in November 2019. ![]() Mission team members perform acoustic tests of the Sentinel-6 Michael Freilich satellite in a chamber outfitted with giant speakers that blast the spacecraft with sound. This is to ensure that the high decibels associated with liftoff won’t damage the spacecraft. (Airbus) «Read the rest of this article» Sections: Technology | No Comments
NASA Researches to use Fluid Lensing to map Ocean Floor
For centuries, astronomers have been mapping the sky through the distortions caused by our atmosphere, however, in recent years, they’ve developed techniques to counter these effects, clearing our view of the stars. If we turn to look at the Earth instead of the skies, distorted visuals are a challenge too: Earth scientists who want to map the oceans or study underwater features struggle to see through the distortions caused by waves at the surface. «Read the rest of this article» Sections: Technology | No Comments
NASA Scientists simulating Ocean Vents find evidence these features could have start Life
In a new paper in the journal Astrobiology, NASA scientists at the Jet Propulsion Laboratory describe how they mimicked possible ancient undersea environments with a complex experimental setup. They showed that under extreme pressure, fluid from these ancient seafloor cracks mixed with ocean water could have reacted with minerals from the hydrothermal vents to produce organic molecules – the building blocks that compose nearly all life on Earth. ![]() A seafloor vent called a “white smoker” spews mineral-rich water into the ocean and serves as an energy hub for living creatures. Some scientists think life on Earth may have begun around similar vents on the ocean floor billions of years ago. (NOAA/C. German (WHOI)) «Read the rest of this article» Sections: Technology | No Comments
NASA measures Mass Ocean Animal Migration with help from French Space Laser
Researchers observed this vertical migration pattern using the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite — a joint venture between NASA and the French space agency, Centre National d’Etudes Spatiales — that launched in 2006. They published their findings in the journal Nature Wednesday. ![]() Researchers used the space-based CALIPSO lidar to measure the planet’s largest animal migration, which takes place when small sea creatures swim up from the depths at night to feed on phytoplankton, then back down again just before sunrise. (NASA/Timothy Marvel) «Read the rest of this article» Sections: Technology | No Comments
NASA says Tracking Rising Oceans will be done by New Earth Mission
The Sentinel-6/Jason-CS mission (short for Jason-Continuity of Service), will be the longest-running mission dedicated to answering the question: How much will Earth’s oceans rise by 2030? ![]() The Jason-CS/Sentinel-6 mission that will track sea level rise, one of the clearest signs of global warming, for the next 10 years. Sentinel-6A, the first of the mission’s two satellites, is shown in its clean room in Germany and is scheduled to launch in November 2020. (IABG) «Read the rest of this article» Sections: Technology | No Comments
NASA Scientists reproduce how life could have formed in Earth’s OceansNASA Jet Propulsion Laboratory
Astrobiologist Laurie Barge and her team at NASA’s Jet Propulsion Laboratory in Pasadena, California, are working to recognize life on other planets by studying the origins of life here on Earth. Their research focuses on how the building blocks of life form in hydrothermal vents on the ocean floor. ![]() An image of Saturn’s moon Enceladus backlit by the Sun, taken by the Cassini mission. The false color tail shows jets of icy particles and water that spray into space from an ocean that lies deep below the moon’s icy surface. Future missions could search for the ingredients for life in an ocean on an icy moon like Enceladus. (NASA/JPL/Space Science Institute) «Read the rest of this article» Sections: Technology | No Comments
NASA study shows Warming Oceans could increase Frequency of Extreme Rain StormsNASA Jet Propulsion Laboratory
The study team, led by Hartmut Aumann of NASA’s Jet Propulsion Laboratory in Pasadena, California, combed through 15 years of data acquired by NASA’s Atmospheric Infrared Sounder (AIRS) instrument over the tropical oceans to determine the relationship between the average sea surface temperature and the onset of severe storms. «Read the rest of this article» Sections: Technology | No Comments
NASA research shows Gravitational Pull of Moons could preserve Liquid Water Oceans on Frigid WorldsWritten by Bill Steigerwald / Nancy Jones
This greatly expands the number of locations where extraterrestrial life might be found, since liquid water is necessary to support known forms of life and astronomers estimate there are dozens of these worlds. “These objects need to be considered as potential reservoirs of water and life,” said Prabal Saxena of NASA’s Goddard Space Flight Center in Greenbelt, Maryland, lead author of the research published in Icarus November 24th. ![]() Composite, enhanced-color image of Pluto (lower right) and its largest moon Charon (upper left) taken by NASA’s New Horizons spacecraft on July 14, 2015. Pluto and Charon are shown with approximately correct relative sizes, but their true separation is not to scale. (NASA/JHUAPL/SwRI) «Read the rest of this article» Sections: Technology | No Comments
NASA’s CERES Flight Model 6 instrument to help study Earth’s Energy BudgetWritten by Eric Gillard
“It’s quite an interesting thing when you think about how energy is distributed and exchanged in various forms amongst Earth’s atmosphere, ocean, land and snow surfaces,” he said. As the principal investigator of NASA’s Radiaton Budget Science Project, Loeb oversees a series of space-borne instruments that measure reflected sunlight and thermal radiation emitted by the Earth. It gives him a chance to satisfy his curiosity about our home planet from NASA’s Langley Research Center in Hampton, Virginia. ![]() Earth’s energy budget describes the balance between the radiant energy that reaches Earth from the sun and the energy that flows from Earth back out to space. «Read the rest of this article» Sections: Technology | No Comments
|
Now playing at the Movies
Archives |
|
© 2006-2021 Clarksville, TN Online is owned and operated by residents of Clarksville Tennessee.
|