Clarksville, TN Online: News, Opinion, Arts & Entertainment.


Topic: water

President Donald Trump’s Approval Rating Among Small Business Owners Hits All-Time High

 

The White HouseWashington, D.C. – “Sixty-four percent of small business owners approve of the way Donald Trump is handling his job as president, the highest approval rating for Trump among entrepreneurs since CNBC and SurveyMonkey began conducting a quarterly survey in 2017,” Riley de Leon reports for CNBC.
 
“This is a high watermark for President Trump’s job approval, both among small business owners in our survey and among the general public,” said SurveyMonkey senior research scientist Laura Wronski.

U.S. President Donald J. Trump

U.S. President Donald J. Trump

«Read the rest of this article»

Sections: Politics | No Comments
 

NASA’s Juno spacecraft data reveals amount of Water in Jupiter’s Atmosphere

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Juno mission has provided its first science results on the amount of water in Jupiter’s atmosphere. Published recently in the journal Nature Astronomy, the Juno results estimate that at the equator, water makes up about 0.25% of the molecules in Jupiter’s atmosphere – almost three times that of the Sun.

These are also the first findings on the gas giant’s abundance of water since the agency’s 1995 Galileo mission suggested Jupiter might be extremely dry compared to the Sun (the comparison is based not on liquid water but on the presence of its components, oxygen and hydrogen, present in the Sun).

The JunoCam imager aboard NASA's Juno spacecraft captured this image of Jupiter's southern equatorial region on Sept. 1, 2017. The image is oriented so Jupiter's poles (not visible) run left-to-right of frame. (NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill)

The JunoCam imager aboard NASA’s Juno spacecraft captured this image of Jupiter’s southern equatorial region on Sept. 1, 2017. The image is oriented so Jupiter’s poles (not visible) run left-to-right of frame. (NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA uses Earth Climate Models to Picture Life on Unimaginable Worlds

 

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – In a generic brick building on the northwestern edge of NASA’s Goddard Space Flight Center campus in Greenbelt, Maryland, thousands of computers packed in racks the size of vending machines hum in a deafening chorus of data crunching. Day and night, they spit out 7 quadrillion calculations per second.

These machines collectively are known as NASA’s Discover supercomputer and they are tasked with running sophisticated climate models to predict Earth’s future climate.

Illustration of an exoplanet. (NASA's Goddard Space Flight Center/Chris Smith)

Illustration of an exoplanet. (NASA’s Goddard Space Flight Center/Chris Smith)

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA has big plans for 2020

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – In 2020, NASA will be taking long strides toward returning astronauts to the Moon, continuing the exploration of Mars and developing new technology to make supersonic aircraft fly more quietly.

Artemis: Returning astronauts to the Moon

Under Artemis, NASA will send new science instruments and technology demonstrations to study the Moon, accelerate plans to send astronauts to the Moon by 2024, and establish sustainable lunar exploration by 2028.

Launching Americans from U.S. soil, sending a new rover to Mars and continuing to prepare for human missions to the Moon are just a few of the things NASA has planned for 2020. (NASA TV/Lacey Young)

Launching Americans from U.S. soil, sending a new rover to Mars and continuing to prepare for human missions to the Moon are just a few of the things NASA has planned for 2020. (NASA TV/Lacey Young)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA looks at Mars’ Water loss today to discover how much water Mars once had

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA says Mars may be a rocky planet, but it is not a hospitable world like Earth. It’s cold and dry with a thin atmosphere that has significantly less oxygen than Earth’s. But Mars likely once had liquid water, a key ingredient for life. Studying the history of water can help uncover how the Red Planet lost water and how much water it once had.

“We already knew that Mars was once a wet place,” said Curtis DeWitt, scientist at the Universities Space Research Association’s SOFIA Science Center. “But only by studying how present-day water is lost can we understand just how much existed in the deep past.”

Image of a sloping hillside from the Mars Curiosity rover and an illustration of deuterated water molecules, called HDO instead of H2O because one of its hydrogen atoms has an extra neutrally charged particle. Infrared observations can study these particles that retrace the history of liquid water because the heavier molecules are more likely to remain even after liquid water has evaporated. (NASA/JPL-Caltech/MSSS/SOFIA)

Image of a sloping hillside from the Mars Curiosity rover and an illustration of deuterated water molecules, called HDO instead of H2O because one of its hydrogen atoms has an extra neutrally charged particle. Infrared observations can study these particles that retrace the history of liquid water because the heavier molecules are more likely to remain even after liquid water has evaporated. (NASA/JPL-Caltech/MSSS/SOFIA)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA maps Water Ice locations on Mars

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA has big plans for returning astronauts to the Moon in 2024, a stepping stone on the path to sending humans to Mars. But where should the first people on the Red Planet land?

A new paper published in Geophysical Research Letters will help by providing a map of water ice believed to be as little as an inch (2.5 centimeters) below the surface.

Water ice will be a key consideration for any potential landing site. With little room to spare aboard a spacecraft, any human missions to Mars will have to harvest what’s already available for drinking water and making rocket fuel.

The area of Mars in this illustration holds near-surface water ice that would be easily accessible for astronauts to dig up. The water ice was identified as part of a map using data from NASA orbiters. (NASA/JPL-Caltech)

The area of Mars in this illustration holds near-surface water ice that would be easily accessible for astronauts to dig up. The water ice was identified as part of a map using data from NASA orbiters. (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

Soon, NASA will have Two Rovers driving across Mars

 

NASA - National Aeronautics and Space AdministrationPasadena, CA –  Curiosity won’t be NASA’s only active Mars rover for much longer. Next summer, Mars 2020 will be headed for the Red Planet.

While the newest rover borrows from Curiosity’s design, they aren’t twins: Built and managed by NASA’s Jet Propulsion Laboratory in Pasadena, California, each has its own role in the ongoing exploration of Mars and the search for ancient life.

Here’s a closer look at what sets the siblings apart.

Illustrations of NASA's Curiosity and Mars 2020 rovers. While the newest rover borrows from Curiosity's design, each has its own role in the ongoing exploration of Mars and the search for ancient life. (NASA/JPL-Caltech)

Illustrations of NASA’s Curiosity and Mars 2020 rovers. While the newest rover borrows from Curiosity’s design, each has its own role in the ongoing exploration of Mars and the search for ancient life. (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA’s OSIRIS-REx Spacecraft offers insight into Particles being ejected from Asteroid Bennu

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – Shortly after NASA’s OSIRIS-REx spacecraft arrived at asteroid Bennu, an unexpected discovery by the mission’s science team revealed that the asteroid could be active, or consistently discharging particles into space. The ongoing examination of Bennu – and its sample that will eventually be returned to Earth – could potentially shed light on why this intriguing phenomenon is occurring.

The OSIRIS-REx team first observed a particle-ejection event in images captured by the spacecraft’s navigation cameras taken on January 6th, just a week after the spacecraft entered its first orbit around Bennu.

This view of asteroid Bennu ejecting particles from its surface on Jan. 6, 2019, was created by combining two images taken by the NavCam 1 imager aboard NASA's OSIRIS-REx spacecraft: a short exposure image, which shows the asteroid clearly, and a long-exposure image (five seconds), which shows the particles clearly. (NASA/Goddard/University of Arizona/Lockheed Martin)

This view of asteroid Bennu ejecting particles from its surface on Jan. 6, 2019, was created by combining two images taken by the NavCam 1 imager aboard NASA’s OSIRIS-REx spacecraft: a short exposure image, which shows the asteroid clearly, and a long-exposure image (five seconds), which shows the particles clearly. (NASA/Goddard/University of Arizona/Lockheed Martin)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA announces Water Vapor Confirmed on Jupiter’s moon Europa

 

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – Forty years ago, a Voyager spacecraft snapped the first closeup images of Europa, one of Jupiter’s 79 moons. These revealed brownish cracks slicing the moon’s icy surface, which give Europa the look of a veiny eyeball. Missions to the outer solar system in the decades since have amassed enough additional information about Europa to make it a high-priority target of investigation in NASA’s search for life.

What makes this moon so alluring is the possibility that it may possess all of the ingredients necessary for life. Scientists have evidence that one of these ingredients, liquid water, is present under the icy surface and may sometimes erupt into space in huge geysers.

On the left is a view of Europa taken from 2.9 million kilometers (1.8 million miles) away on March 2, 1979 by the Voyager 1 spacecraft. Next is a color image of Europa taken by the Voyager 2 spacecraft during its close encounter on July 9, 1979. On the right is a view of Europa made from images taken by the Galileo spacecraft in the late 1990s. (NASA/JPL)

On the left is a view of Europa taken from 2.9 million kilometers (1.8 million miles) away on March 2, 1979 by the Voyager 1 spacecraft. Next is a color image of Europa taken by the Voyager 2 spacecraft during its close encounter on July 9, 1979. On the right is a view of Europa made from images taken by the Galileo spacecraft in the late 1990s. (NASA/JPL)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA Mars Curiosity Rover finds new mystery, Oxygen

 

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – For the first time in the history of space exploration, NASA scientists have measured the seasonal changes in the gases that fill the air directly above the surface of Gale Crater on Mars.

As a result, they noticed something baffling: oxygen, the gas many Earth creatures use to breathe, behaves in a way that so far scientists cannot explain through any known chemical processes.

Over the course of three Mars years (or nearly six Earth years) an instrument in the Sample Analysis at Mars (SAM) portable chemistry lab inside the belly of NASA’s Curiosity rover inhaled the air of Gale Crater and analyzed its composition.

NASA's Curiosity Mars rover imaged these drifting clouds on May 17, 2019, the 2,410th Martian day, or sol, of the mission, using its black-and-white Navigation Cameras (Navcams). (NASA/JPL-Caltech)

NASA’s Curiosity Mars rover imaged these drifting clouds on May 17, 2019, the 2,410th Martian day, or sol, of the mission, using its black-and-white Navigation Cameras (Navcams). (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 



  • Visit Us On FacebookVisit Us On TwitterVisit Us On PinterestVisit Us On YoutubeCheck Our FeedVisit Us On Instagram
  • Personal Controls

    Archives