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


Topic: Near Earth Objects

NASA reports Small Asteroid breaks up in Earth’s Atmosphere

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA says last Saturday, June 22nd, 2019, a lightning detector on a NOAA weather satellite picked up something that wasn’t lightning. A scientist at the Center for Near Earth Object Studies at NASA’s Jet Propulsion Laboratory in Pasadena, California, started doing some detective work.

When a lightning detector on a NOAA weather satellite detected something that wasn’t lightning last Saturday, a scientist at the Center for Near Earth Object Studies at NASA’s Jet Propulsion Laboratory in Pasadena, California, did some detective work.

This image shows the flash of an asteroid impacting Earth's atmosphere over the Caribbean Sea on June 22nd, 2019. It was captured by the Geostationary Lightning Mapper instrument aboard GOES-16, an Earth-monitoring satellite operated by NOAA and NASA. (CIRA/CSU, RAMMB/NOAA/NASA)

This image shows the flash of an asteroid impacting Earth’s atmosphere over the Caribbean Sea on June 22nd, 2019. It was captured by the Geostationary Lightning Mapper instrument aboard GOES-16, an Earth-monitoring satellite operated by NOAA and NASA. (CIRA/CSU, RAMMB/NOAA/NASA)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA excited about Apophis Asteroid passing by Earth in 2029

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA says that a speck of light will streak across the sky, getting brighter and faster on April 13th, 2029. At one point it will travel more than the width of the full Moon within a minute and it will get as bright as the stars in the Little Dipper.

But it won’t be a satellite or an airplane – it will be a 1,100-foot-wide (340-meter-wide) near-Earth asteroid called 99942 Apophis that will cruise harmlessly by Earth, about 19,000 miles (31,000 kilometers) above the surface. That’s within the distance that some of our spacecraft that orbit Earth.

The international asteroid research community couldn’t be more excited.

This illustration shows the distance between the Apophis asteroid and Earth at the time of the asteroid's closest approach. The blue dots are the many man-made satellites that orbit our planet, and the pink represents the International Space Station. (NASA/JPL-Caltech)

This illustration shows the distance between the Apophis asteroid and Earth at the time of the asteroid’s closest approach. The blue dots are the many man-made satellites that orbit our planet, and the pink represents the International Space Station. (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA plans Asteroid Impact Exercise with FEMA, International Partners

 

NASA Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – While headlines routinely report on “close shaves” and “near-misses” when near-Earth objects (NEOs) such as asteroids or comets pass relatively close to Earth, the real work of preparing for the possibility of a NEO impact with Earth goes on mostly out of the public eye.

For more than 20 years, NASA and its international partners have been scanning the skies for NEOs, which are asteroids and comets that orbit the Sun and come within 30 million miles (50 million kilometers) of Earth’s orbit.

The Manicouagan impact crater in Quebec, Canada, is one of many reminders that asteroids have impacted Earth. Although large impacts are rare, it's important to be prepared. That's why NASA, other U.S. agencies and international partners gather periodically to simulate impact scenarios and discuss the best course of action for disaster mitigation. (International Space Station)

The Manicouagan impact crater in Quebec, Canada, is one of many reminders that asteroids have impacted Earth. Although large impacts are rare, it’s important to be prepared. That’s why NASA, other U.S. agencies and international partners gather periodically to simulate impact scenarios and discuss the best course of action for disaster mitigation. (International Space Station)

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA study reveals new information about Interstellar Visitor Oumuamua

 

NASA Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – In November 2017, scientists pointed NASA’s Spitzer Space Telescope toward the object known as ‘Oumuamua – the first known interstellar object to visit our solar system. The infrared Spitzer was one of many telescopes pointed at ‘Oumuamua in the weeks after its discovery that October.

‘Oumuamua was too faint for Spitzer to detect when it looked more than two months after the object’s closest aproach to Earth in early September. However, the “non-detection” puts a new limit on how large the strange object can be. The results are reported in a new study published today in the Astronomical Journal and coauthored by scientists at NASA’s Jet Propulsion Laboratory in Pasadena, California.

An artist's concept of interstellar asteroid 1I/2017 U1 ('Oumuamua) as it passed through the solar system after its discovery in October 2017. Observations of 'Oumuamua indicate that it must be very elongated because of its dramatic variations in brightness as it tumbled through space. (European Southern Observatory / M. Kornmesser)

An artist’s concept of interstellar asteroid 1I/2017 U1 (‘Oumuamua) as it passed through the solar system after its discovery in October 2017. Observations of ‘Oumuamua indicate that it must be very elongated because of its dramatic variations in brightness as it tumbled through space. (European Southern Observatory / M. Kornmesser)

«Read the rest of this article»

Sections: Technology | No Comments
 

Federal Government Releases National Near-Earth Object Preparedness Plan

 

NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A new multiagency report outlines how the U.S. could become better prepared for near-Earth objects — asteroids and comets whose orbits come within 30 million miles of Earth — otherwise known as NEOs. While no known NEOs currently pose significant risks of impact, the report is a key step to addressing a nationwide response to any future risks.

NASA, along with the Office of Science and Technology Policy, the Federal Emergency Management Agency and several other governmental agencies collaborated on this federal planning document for NEOs.

This image, taken in 2015, shows Earth as seen by NASA's Earth Polychromatic Imaging Camera (EPIC), aboard NOAA's Deep Space Climate Observatory (DSCOVR) spacecraft. (NASA)

This image, taken in 2015, shows Earth as seen by NASA’s Earth Polychromatic Imaging Camera (EPIC), aboard NOAA’s Deep Space Climate Observatory (DSCOVR) spacecraft. (NASA)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Near-Earth Object Wide-field Survey Explorer (NEOWISE) has discovered 788 near-Earth objects and 136 comets

 

NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission has released its fourth year of survey data. Since the mission was restarted in December 2013, after a period of hibernation, the asteroid- and comet-hunter has completely scanned the skies nearly eight times and has observed and characterized 29,375 objects in four years of operations. This total includes 788 near-Earth objects and 136 comets since the mission restart.

Near-Earth objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of the planets in our solar system into orbits that allow them to enter Earth’s neighborhood.

This artist's concept shows NASA's Near-Earth Object Wide-field Infrared Survey Explorer, or NEOWISE spacecraft, in its orbit around Earth. (Image credit: NASA/JPL-Caltech)

This artist’s concept shows NASA’s Near-Earth Object Wide-field Infrared Survey Explorer, or NEOWISE spacecraft, in its orbit around Earth. (Image credit: NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s WISE spacecraft reveals nearly five times more comets have passed the Sun then previously predicted

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Comets that take more than 200 years to make one revolution around the Sun are notoriously difficult to study. Because they spend most of their time far from our area of the solar system, many “long-period comets” will never approach the Sun in a person’s lifetime.

In fact, those that travel inward from the Oort Cloud — a group of icy bodies beginning roughly 186 billion miles (300 billion kilometers) away from the Sun — can have periods of thousands or even millions of years.

NASA’s WISE spacecraft, scanning the entire sky at infrared wavelengths, has delivered new insights about these distant wanderers.

This illustration shows how scientists used data from NASA's WISE spacecraft to determine the nucleus sizes of comets. They subtracted a model of how dust and gas behave in comets in order to obtain the core size. (NASA/JPL-Caltech)

This illustration shows how scientists used data from NASA’s WISE spacecraft to determine the nucleus sizes of comets. They subtracted a model of how dust and gas behave in comets in order to obtain the core size. (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA’s Near-Earth Object Wide-field Infrared Survey Explorer continues finding unknown objects

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission has released its third year of survey data, with the spacecraft discovering 97 previously unknown celestial objects in the last year. Of those, 28 were near-Earth objects, 64 were main belt asteroids and five were comets.

The spacecraft has now characterized a total of 693 near-Earth objects since the mission was re-started in December 2013. Of these, 114 are new. The NEOWISE team has released an animation depicting this solar system survey’s discoveries and characterizations for its third year of operations.

This image shows the progression of NASA's Near-Earth Object Wide-field Survey Explorer (NEOWISE) investigation for the mission's first three years following its restart in December 2013. (NASA/JPL-Caltech/UCLA/JHU)

This image shows the progression of NASA’s Near-Earth Object Wide-field Survey Explorer (NEOWISE) investigation for the mission’s first three years following its restart in December 2013. (NASA/JPL-Caltech/UCLA/JHU)

«Read the rest of this article»

Sections: Technology | 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 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
 



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

    Archives