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


Topic: Sun

NASA announces Newly Discovered Comet is likely Interstellar Visitor

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA says a newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object – designated C/2019 Q4 (Borisov) – was discovered on August 30th, 2019, by Gennady Borisov at the MARGO observatory in Nauchnij, Crimea.

The official confirmation that comet C/2019 Q4 is an interstellar comet has not yet been made, but if it is interstellar, it would be only the second such object detected. The first, ‘Oumuamua, was observed and confirmed in October 2017.

This illustration depicts Comet C/2019 Q4's trajectory. Deemed a possible interstellar object, it will approach no closer to Earth than about 190 million miles (300 million kilometers). (NASA/JPL-Caltech)

This illustration depicts Comet C/2019 Q4’s trajectory. Deemed a possible interstellar object, it will approach no closer to Earth than about 190 million miles (300 million kilometers). (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA explains Mars Solar Conjunction, Why Does It Matter?

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – The daily chatter between antennas here on Earth and those on NASA spacecraft at Mars is about to get much quieter for a few weeks.

That’s because Mars and Earth will be on opposite sides of the Sun, a period known as Mars solar conjunction. The Sun expels hot, ionized gas from its corona, which extends far into space. During solar conjunction, this gas can interfere with radio signals when engineers try to communicate with spacecraft at Mars, corrupting commands and resulting in unexpected behavior from our deep space explorers.

This animation illustrates Mars solar conjunction, a period when Mars is on the opposite side of the Sun from Earth. During this time, the Sun can interrupt radio transmissions to spacecraft on and around the Red Planet. (NASA/JPL-Caltech)

This animation illustrates Mars solar conjunction, a period when Mars is on the opposite side of the Sun from Earth. During this time, the Sun can interrupt radio transmissions to spacecraft on and around the Red Planet. (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA picks Study Proposals for understanding Fundamental Nature of Space

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. Two Proposals have been picked by NASA for concept studies that could help us better understand the fundamental nature of space and how it changes in response to planetary atmospheres, radiation from the Sun, and interstellar particles. The proposals will advance NASA’s heliophysics program and could lead to better protection for both technology and humans as we travel farther from home.

Each of these Heliophysics Science Mission of Opportunity proposals will receive $400,000 to conduct a nine-month mission concept study.

NASA has chosen two new science proposals for nine-month concept studies to advance our understanding of how the particles and energy in space – shown here flowing from the Sun in an illustration of the solar wind – affect the fundamental nature of space. One proposal will ultimately be chosen to launch along with NASA’s upcoming Interstellar Mapping and Acceleration Probe in October 2024. (NASA)

NASA has chosen two new science proposals for nine-month concept studies to advance our understanding of how the particles and energy in space – shown here flowing from the Sun in an illustration of the solar wind – affect the fundamental nature of space. One proposal will ultimately be chosen to launch along with NASA’s upcoming Interstellar Mapping and Acceleration Probe in October 2024. (NASA)

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA’s Chandra X-ray Observatory discovered Cloaked Black Hole

 

NASA - National Aeronautics and Space AdministrationHuntsville, AL – Using NASA’s Chandra X-ray Observatory, astronomers have discovered evidence for the farthest “cloaked” black hole found to date. At only about 6% of the current age of the universe, this is the first indication of a black hole hidden by gas at such an early time in the history of the cosmos.

Supermassive black holes, which are millions to billions of times more massive than our Sun, typically grow by pulling in material from a disk of surrounding matter. Rapid growth generates large amounts of radiation in a very small region around the black hole. Scientists call this extremely bright, compact source a “quasar.”

Data from NASA’s Chandra X-ray Observatory have revealed what may be the most distant shrouded black hole. (X-ray: NASA/CXO/Pontificia Universidad Catolica de Chile/F. Vito; Radio: ALMA (ESO/NAOJ/NRAO); optical: Pan-STARRS)

Data from NASA’s Chandra X-ray Observatory have revealed what may be the most distant shrouded black hole. (X-ray: NASA/CXO/Pontificia Universidad Catolica de Chile/F. Vito; Radio: ALMA (ESO/NAOJ/NRAO); optical: Pan-STARRS)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA says there maybe Thick Ice Deposits on Moon, Mercury

 

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – NASA’s LRO and MESSENGER spacecraft data reveals Earth’s Moon and Mercury, the closest planet to the Sun, may contain significantly more water ice than previously thought.

The potential ice deposits are found in craters near the poles of both worlds. On the Moon, “We found shallow craters tend to be located in areas where surface ice was previously detected near the south pole of the Moon, and inferred this shallowing is most likely due to the presence of buried thick ice deposits,” said lead author Lior Rubanenko of the University of California, Los Angeles.

Conceptual illustration of permanently shadowed, shallow icy craters near the lunar south pole. (UCLA/NASA)

Conceptual illustration of permanently shadowed, shallow icy craters near the lunar south pole. (UCLA/NASA)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA announces One of the Two Van Allen Probe Spacecraft shutdown

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA reports that on July 19th, 2019, mission operators sent a shutdown command to one of two Van Allen Probes spacecraft at 12:27pm CT, known as spacecraft B, from the Johns Hopkins University Applied Physics Laboratory, or APL, in Laurel, Maryland.

As expected, following final de-orbit maneuvers in February of this year, the spacecraft has used its remaining propellant to keep its solar panels pointed at the Sun and is now out of fuel.

Illustration of the identical Van Allen Probes. (JHU/APL, NASA)

Illustration of the identical Van Allen Probes. (JHU/APL, NASA)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA celebrates the 50th Anniversary of the Apollo 11 Moon Landing

 

NASA - National Aeronautics and Space AdministrationHouston, TX – NASA lands “Men Land On The Moon”.

Words such as these were emblazoned in dozens of languages on the front page of newspapers around the world, echoing the first part of President John F. Kennedy’s bold challenge to the nation, made more than eight years earlier – to land a man on the Moon.

That part was successfully accomplished on July 20th, 1969. The second part of the challenge, the safe return to Earth, would have to wait four more days.

Eagle shortly after undocking. (NASA)

Eagle shortly after undocking. (NASA)

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA scientists study Aerogel for building habitats on Mars

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – The Red Planet is an inhospitable world. NASA says growing crops on Mars is far easier in science fiction than it will be in reality. Among other challenges, subzero temperatures mean water can persist on the surface only as ice, and the planet’s atmosphere offers little protection to plants (or people) from the Sun’s radiation.

Raising crops on Mars is far easier in science fiction than it will be in real life: The Red Planet is an inhospitable world. Among other challenges, subzero temperatures mean water can persist on the surface only as ice, and the planet’s atmosphere offers little protection to plants (or people) from the Sun’s radiation.

Scientists are exploring how aerogel, a translucent, Styrofoam-like material, could be used as a building material on Mars. Aerogel retains heat; structures built with it could raise temperatures enough to melt water ice on the Martian surface. (NASA/JPL-Caltech)

Scientists are exploring how aerogel, a translucent, Styrofoam-like material, could be used as a building material on Mars. Aerogel retains heat; structures built with it could raise temperatures enough to melt water ice on the Martian surface. (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA Dragonfly rotorcraft lander to fly around Saturn’s moon Titan exploring

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Saturn’s moon Titan will be the next destination for NASA in our solar system. Titan is the unique, richly organic world. Advancing our search for the building blocks of life, the Dragonfly mission will fly multiple sorties to sample and examine sites around Saturn’s icy moon.

NASA has announced that our next destination in the solar system is the unique, richly organic world Titan. Advancing our search for the building blocks of life, the Dragonfly mission will fly multiple sorties to sample and examine sites around Saturn’s icy moon.

This illustration shows NASA’s Dragonfly rotorcraft-lander approaching a site on Saturn’s exotic moon, Titan. Taking advantage of Titan’s dense atmosphere and low gravity, Dragonfly will explore dozens of locations across the icy world, sampling and measuring the compositions of Titan's organic surface materials to characterize the habitability of Titan’s environment and investigate the progression of prebiotic chemistry. (NASA/JHU-APL)

This illustration shows NASA’s Dragonfly rotorcraft-lander approaching a site on Saturn’s exotic moon, Titan. Taking advantage of Titan’s dense atmosphere and low gravity, Dragonfly will explore dozens of locations across the icy world, sampling and measuring the compositions of Titan’s organic surface materials to characterize the habitability of Titan’s environment and investigate the progression of prebiotic chemistry. (NASA/JHU-APL)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Spitzer Space Telescope to be turned off January 30th, 2020

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – On January 30th, 2020, NASA’s Spitzer Space Telescope will be switched off permanently  after nearly 16 years of exploring the cosmos in infrared light. By then, the spacecraft will have operated for more than 11 years beyond its prime mission, thanks to the Spitzer engineering team’s ability to address unique challenges as the telescope slips farther and farther from Earth.

Managed and operated by NASA’s Jet Propulsion Laboratory in Pasadena, California, Spitzer is a small but transformational observatory. It captures infrared light, which is often emitted by “warm” objects that aren’t quite hot enough to radiate visible light.

This artist's concept shows NASA's Spitzer Space Telescope in front of an infrared image of the Milky Way galaxy. (NASA/JPL-Caltech)

This artist’s concept shows NASA’s Spitzer Space Telescope in front of an infrared image of the Milky Way galaxy. (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