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


Topic: Asteroid

NASA researchers say Mars may have had Rings

 

Written by Brian Wallheimer
NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – As children, we learned about our solar system’s planets by certain characteristics — Jupiter is the largest, Saturn has rings, Mercury is closest to the sun. Mars is red, but it’s possible that one of our closest neighbors also had rings at one point and may have them again someday.

That’s the theory put forth by NASA-funded scientists at Purdue University, Lafayette, Indiana, whose findings were published in the journal Nature Geoscience. David Minton and Andrew Hesselbrock developed a model that suggests that debris that was pushed into space from an asteroid or other body slamming into Mars around 4.3 billion years ago alternates between becoming a planetary ring and clumping together to form a moon.

This sequence of images from NASA's Curiosity Mars rover shows one of Mars' two moons, Phobos, passing directly in front of the other, Deimos, in 2013. (NASA/JPL-Caltech/Malin Space Science Systems/Texas A&M Univ.)

This sequence of images from NASA’s Curiosity Mars rover shows one of Mars’ two moons, Phobos, passing directly in front of the other, Deimos, in 2013. (NASA/JPL-Caltech/Malin Space Science Systems/Texas A&M Univ.)

«Read the rest of this article»

Sections: Technology | No Comments
 

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»

Sections: Technology | No Comments
 

NASA’s Goldstone Solar System Radar images Asteroid as it passes by Earth

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Radar images of asteroid 2017 BQ6 were obtained on February 6th and 7th with NASA’s 70-meter (230-foot) antenna at the Goldstone Deep Space Communications Complex in California. They reveal an irregular, angular-appearing asteroid about 660 feet (200 meters) in size that rotates about once every three hours. The images have resolutions as fine as 12 feet (3.75 meters) per pixel.

“The radar images show relatively sharp corners, flat regions, concavities, and small bright spots that may be boulders,” said Lance Benner of NASA’s Jet Propulsion Laboratory in Pasadena, California, who leads the agency’s asteroid radar research program.

This composite of 25 images of asteroid 2017 BQ6 was generated with radar data collected using NASA's Goldstone Solar System Radar in California's Mojave Desert. (NASA/JPL-Caltech/GSSR)

This composite of 25 images of asteroid 2017 BQ6 was generated with radar data collected using NASA’s Goldstone Solar System Radar in California’s Mojave Desert. (NASA/JPL-Caltech/GSSR)

«Read the rest of this article»

Sections: News | No Comments
 


NASA’s Discovery Program to send missions to Jupiter’s Trojan Asteroids and Metal Asteroid

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA has selected two missions that have the potential to open new windows on one of the earliest eras in the history of our solar system – a time less than 10 million years after the birth of our sun. The missions, known as Lucy and Psyche, were chosen from five finalists and will proceed to mission formulation, with the goal of launching in 2021 and 2023, respectively.

“Lucy will visit a target-rich environment of Jupiter’s mysterious Trojan asteroids, while Psyche will study a unique metal asteroid that’s never been visited before,” said Thomas Zurbuchen, associate administrator for NASA’s Science Mission Directorate in Washington. “This is what Discovery Program missions are all about – boldly going to places we’ve never been to enable groundbreaking science.”

Artist's concept of the Psyche spacecraft, which will conduct a direct exploration of an asteroid thought to be a stripped planetary core. (SSL/ASU/P. Rubin/NASA/JPL-Caltech)

Artist’s concept of the Psyche spacecraft, which will conduct a direct exploration of an asteroid thought to be a stripped planetary core. (SSL/ASU/P. Rubin/NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA advances Exploration Objectives in 2016

 

Written by Bob Jacobs / Allard Beutel
NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – In 2016, NASA drove advances in technology, science, aeronautics and space exploration that enhanced the world’s knowledge, innovation, and stewardship of Earth.

“This past year marked record-breaking progress in our exploration objectives,” said NASA Administrator Charles Bolden. “We advanced the capabilities we’ll need to travel farther into the solar system while increasing observations of our home and the universe, learning more about how to continuously live and work in space, and, of course, inspiring the next generation of leaders to take up our Journey to Mars and make their own discoveries.”

This illustration depicts NASA's Juno spacecraft at Jupiter, with its solar arrays and main antenna pointed toward the distant sun and Earth. (NASA/JPL-Caltech)

This illustration depicts NASA’s Juno spacecraft at Jupiter, with its solar arrays and main antenna pointed toward the distant sun and Earth. (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Journey to Mars builds ground work for missions beyond our Solar System

 

NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Humanity’s great leap into the space between the stars has, in a sense, already begun. NASA’s Voyager 1 probe broke through the sun’s magnetic bubble to touch the interstellar wind. Voyager 2 isn’t far behind. New Horizons shot past Pluto on its way to encounters with more distant dwarf worlds, the rubble at the solar system’s edge.

Closer to home, we’re working on techniques to help us cross greater distances. Astronauts feast on romaine lettuce grown aboard the International Space Station, perhaps a preview of future banquets en route to Mars, or to deep space.

A selfie taken by Curiosity the Mars rover in the Murray Buttes area. NASA’s Journey to Mars, a plan aimed at building on robotic missions to send humans to the red planet, could be helping lay the groundwork. (NASA/JPL-Caltech/MSSS)

A selfie taken by Curiosity the Mars rover in the Murray Buttes area. NASA’s Journey to Mars, a plan aimed at building on robotic missions to send humans to the red planet, could be helping lay the groundwork. (NASA/JPL-Caltech/MSSS)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA to see near-earth asteroid Bennu through Cameras on OSIRIS-REx spacecraft

 

Written by Sarah Schlieder
NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – Retrieving an asteroid sample is no easy task. Doing the job blindfolded is even more challenging. That’s why scientists equipped the OSIRIS-REx spacecraft with a set of eyes to watch it all unfold.

NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) launched September 8th, 2016, and is traveling to a near-Earth asteroid known as Bennu, to harvest a sample of surface material, and return it to Earth for study. A trio of cameras will capture it all.

YouTube Preview Image «Read the rest of this article»

Sections: Technology | No Comments
 


NASA and FEMA conducts Asteroid Impacting Earth Simulation Exercise

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – What would we do if we discovered a large asteroid on course to impact Earth? While highly unlikely, that was the high-consequence scenario discussed by attendees at an October 25th NASA-FEMA tabletop exercise in El Segundo, California.

The third in a series of exercises hosted jointly by NASA and FEMA — the Federal Emergency Management Agency — the simulation was designed to strengthen the collaboration between the two agencies, which have Administration direction to lead the U.S. response.

Artist's concept of a near-Earth object. (NASA/JPL-Caltech)

Artist’s concept of a near-Earth object. (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA reports number of known Near-Earth Asteroids now over 15,000

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – The number of discovered near-Earth asteroids (NEAs) now tops 15,000, with an average of 30 new discoveries added each week. This milestone marks a 50 percent increase in the number of known NEAs since 2013, when discoveries reached 10,000 in August of that year.

Surveys funded by NASA’s Near Earth Object (NEO) Observations Program (NEOs include both asteroids and comets) account for more than 95 percent of discoveries so far.

The 15,000th near-Earth asteroid is designated 2016 TB57.

The 15,000th near-Earth asteroid discovered is designated 2016 TB57. It was discovered on Oct. 13, 2016, by observers at the Mount Lemmon Survey, an element of the NASA-funded Catalina Sky Survey in Tucson, Arizona. (NASA/JPL-Caltech)

The 15,000th near-Earth asteroid discovered is designated 2016 TB57. It was discovered on Oct. 13, 2016, by observers at the Mount Lemmon Survey, an element of the NASA-funded Catalina Sky Survey in Tucson, Arizona. (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

Orbital ATK’s Cygnus Spacecraft launches carrying NASA Cargo to International Space Station

 

Written by Kathryn Hambleton
NASA’s Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – The crew of the International Space Station soon will be equipped to perform dozens of new scientific investigations with cargo launched Monday aboard NASA’s latest commercial resupply services mission from the agency’s Wallops Flight Facility in Virginia.

Orbital ATK’s Cygnus spacecraft lifted off at 7:45pm EDT from the Mid-Atlantic Regional Spaceport’s Pad 0A on the company’s upgraded Antares 230 rocket carrying more than 5,100 pounds of cargo. Cygnus is scheduled to arrive at the space station Sunday, October 23rd. Expedition 49 astronauts Takuya Onishi of the Japan Aerospace Exploration Agency and Kate Rubins of NASA will use the space station’s robotic arm to grapple Cygnus, about 6:00am.

The Orbital ATK Antares rocket, with the Cygnus spacecraft onboard, launches from Pad-0A, Monday, Oct. 17, 2016 at NASA's Wallops Flight Facility in Virginia. Orbital ATK’s sixth contracted cargo resupply mission with NASA to the International Space Station is delivering over 5,100 pounds of science and research, crew supplies and vehicle hardware to the orbital laboratory and its crew. (NASA/Bill Ingalls)

The Orbital ATK Antares rocket, with the Cygnus spacecraft onboard, launches from Pad-0A, Monday, Oct. 17, 2016 at NASA’s Wallops Flight Facility in Virginia. Orbital ATK’s sixth contracted cargo resupply mission with NASA to the International Space Station is delivering over 5,100 pounds of science and research, crew supplies and vehicle hardware to the orbital laboratory and its crew. (NASA/Bill Ingalls)

«Read the rest of this article»

Sections: Technology | No Comments
 


Page 1 of 1412345...»

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

    Archives