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


NASA completes Flyby Mission review for Jupiter’s moon Europa

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A mission to examine the habitability of Jupiter’s ocean-bearing moon Europa is taking one step closer to the launchpad, with the recent completion of a major NASA review.

On February 15th, NASA’s Europa multiple-flyby mission successfully completed its Key Decision Point-B review. This NASA decision permits the mission to move forward into its preliminary design phase, known as “Phase B,” beginning on February 27th.

A highlight of Phase A was the selection and accommodation of 10 instruments being developed to study the scientific mysteries of Europa.

This artist's rendering shows NASA's Europa mission spacecraft, which is being developed for a launch sometime in the 2020s. (NASA/JPL-Caltech)

This artist’s rendering shows NASA’s Europa mission spacecraft, which is being developed for a launch sometime in the 2020s. (NASA/JPL-Caltech)

«Read the rest of this article»


NASA to present findings on Exoplanets in other systems during Wednesday News Conference

 

Written by Felicia Chou / Sean Potter
NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA will hold a news conference at 10:00am PST (12:00pm CST) Wednesday, February 22nd, to present new findings on planets that orbit stars other than our sun, known as exoplanets. The event will air live on NASA Television and the agency’s website.

Details of these findings are embargoed by the journal Nature until 10:00am PST (12:00pm CST).

Media and the public also may ask questions during the briefing on Twitter using the hashtag #askNASA.

Artist's illustration of an exoplanet. (NASA)

Artist’s illustration of an exoplanet. (NASA)

«Read the rest of this article»


NASA’s Earth Science continues research from International Space Station

 

Written by Samson Reiny
NASA Earth Science News Team

NASA - National Aeronautics and Space AdministrationWashington, D.C. – The number of instruments on the International Space Station dedicated to observing Earth to increase our understanding of our home planet continues to grow.

Two new instruments are scheduled to make their way to the station on the SpaceX Dragon capsule.

The Stratospheric Aerosol and Gas Experiment (SAGE) III instrument will monitor the condition of the ozone layer, which covers an area in the stratosphere 10 to 30 miles (16 to 48 kilometers) above Earth and protects the planet from the sun’s harmful ultraviolet radiation.

The International Space Station is becoming an increasingly busy platform for studying our home planet. (NASA)

The International Space Station is becoming an increasingly busy platform for studying our home planet. (NASA)

«Read the rest of this article»




NASA’s Cassini spacecraft examines ice moon with a salty ocean, Saturn’s Enceladus

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – On February 17th, 2005, NASA’s Cassini spacecraft was making the first-ever close pass over Saturn’s moon Enceladus as it worked through its detailed survey of the planet’s icy satellites. Exciting, to be sure, just for the thrill of exploration. But then Cassini’s magnetometer instrument noticed something odd.

Since NASA’s two Voyager spacecraft made their distant flybys of Enceladus about 20 years prior, scientists had anticipated the little moon would be an interesting place to visit with Cassini. Enceladus is bright white — the most reflective object in the solar system, in fact — and it orbits in the middle of a faint ring of dust-sized ice particles known as Saturn’s E ring.

A dramatic plume sprays water ice and vapor from the south polar region of Saturn's moon Enceladus. Cassini's first hint of this plume came during the spacecraft's first close flyby of the icy moon on February 17, 2005. (NASA/JPL/Space Science Institute)

A dramatic plume sprays water ice and vapor from the south polar region of Saturn’s moon Enceladus. Cassini’s first hint of this plume came during the spacecraft’s first close flyby of the icy moon on February 17, 2005. (NASA/JPL/Space Science Institute)

«Read the rest of this article»


NASA’s Juno Spacecraft will continue current orbit around Jupiter

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Juno mission to Jupiter, which has been in orbit around the gas giant since July 4, 2016, will remain in its current 53-day orbit for the remainder of the mission. This will allow Juno to accomplish its science goals, while avoiding the risk of a previously-planned engine firing that would have reduced the spacecraft’s orbital period to 14 days.

“Juno is healthy, its science instruments are fully operational, and the data and images we’ve received are nothing short of amazing,” said Thomas Zurbuchen, associate administrator for NASA’s Science Mission Directorate in Washington. “The decision to forego the burn is the right thing to do — preserving a valuable asset so that Juno can continue its exciting journey of discovery.”

NASA's Juno spacecraft soared directly over Jupiter's south pole when JunoCam acquired this image on February 2, 2017 at 6:06 a.m. PT (9:06 a.m. ET), from an altitude of about 62,800 miles (101,000 kilometers) above the cloud tops. (NASA)

NASA’s Juno spacecraft soared directly over Jupiter’s south pole when JunoCam acquired this image on February 2, 2017 at 6:06 a.m. PT (9:06 a.m. ET), from an altitude of about 62,800 miles (101,000 kilometers) above the cloud tops. (NASA)

«Read the rest of this article»


NASA’s Dawn Mission finds Evidence for Organic Material on Dwarf Planet Ceres

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Dawn mission has found evidence for organic material on Ceres, a dwarf planet and the largest body in the main asteroid belt between Mars and Jupiter.

Scientists using the spacecraft’s visible and infrared mapping spectrometer (VIR) detected the material in and around a northern-hemisphere crater called Ernutet. Organic molecules are interesting to scientists because they are necessary, though not sufficient, components of life on Earth.

This enhanced color composite image, made with data from the framing camera aboard NASA's Dawn spacecraft, shows the area around Ernutet Crater. The bright red portions appear redder with respect to the rest of Ceres. (NASA/JPL-Caltech/UCLA/MPS/DLR/IDA)

This enhanced color composite image, made with data from the framing camera aboard NASA’s Dawn spacecraft, shows the area around Ernutet Crater. The bright red portions appear redder with respect to the rest of Ceres. (NASA/JPL-Caltech/UCLA/MPS/DLR/IDA)

«Read the rest of this article»


NASA Laser Communications research may lead to faster data transfer in Space

 

Written by Andrew Good
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Thought your Internet speeds were slow? Try being a space scientist for a day.

The vast distances involved will throttle data rates to a trickle. You’re lucky if a spacecraft can send more than a few megabits per second (Mbps).

But we might be on the cusp of a change. Just as going from dial-up to broadband revolutionized the Internet and made high-resolution photos and streaming video a given, NASA may be ready to undergo a similar “broadband” moment in coming years.

Several upcoming NASA missions will use lasers to increase data transmission from space. (NASA's Goddard Space Flight Center/Amber Jacobson, producer)

Several upcoming NASA missions will use lasers to increase data transmission from space. (NASA’s Goddard Space Flight Center/Amber Jacobson, producer)

«Read the rest of this article»




NASA studies Mt. Erebus Ice Caves to prepare for exploration of Icy Worlds in our Solar System

 

Written by Andrew Good
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, 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.

Aaron Curtis, a postdoctoral scholar at JPL, surveys frost growing in an ice cave under Mt. Erebus, an active volcano in Antarctica. (Dylan Taylor)

Aaron Curtis, a postdoctoral scholar at JPL, surveys frost growing in an ice cave under Mt. Erebus, an active volcano in Antarctica. (Dylan Taylor)

«Read the rest of this article»


Fileless, Almost Invisible Malware Reportedly Infecting At Least 140 Banks, Organizations Globally

 

Banks, telecommunication companies and government organizations in the US, South America, Europe and Africa are among the top targets

Kaspersky LabWoburn, MAKaspersky Lab experts have discovered a series of “invisible” targeted attacks that use only legitimate software: widely available penetration-testing and administration tools as well as the PowerShell framework for task automation in Windows – dropping no malware files onto the hard drive, but hiding in the memory.

This combined approach helps to avoid detection by whitelisting technologies, and leaves forensic investigators with almost no artefacts or malware samples to work with. The attackers stay around just long enough to gather information before their traces are wiped from the system on the first reboot.

The geography of the organizations attacked

The geography of the organizations attacked

«Read the rest of this article»


Three possible landing sites selected for NASA’s 2020 Mars Rover

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Participants in a landing site workshop for NASA’s upcoming Mars 2020 mission have recommended three locations on the Red Planet for further evaluation.

The three potential landing sites for NASA’s next Mars rover include Northeast Syrtis (a very ancient portion of Mars’ surface), Jezero crater, (once home to an ancient Martian lake), and Columbia Hills (potentially home to an ancient hot spring, explored by NASA’s Spirit rover).

Three potential landing sites for NASA's next Mars rover. (NASA)

Three potential landing sites for NASA’s next Mars rover. (NASA)

«Read the rest of this article»




Page 1 of 18812345...»

  • Visit Us On FacebookVisit Us On TwitterVisit Us On GooglePlusVisit Us On PinterestVisit Us On YoutubeCheck Our Feed
  • Personal Controls

    Archives