Bookmark Kaumudi Online  Bookmark this site  Editor@Kaumudi  |  Marketing  Print Advt rates  |  Calendar 2012        Go!    
 
 
November 24, Friday 2017 12:17 AM       

       HEADLINES: Actress attack case: Police to request for special court for trial                                              Dileep tried to defame actress even after attack                                              Murugan’s death: Six doctors become accused                                              Saesendran shouldn’t be minister again: Chennithala                                              Ministerial-level team heads to Munnar to solve land issues                                              Cong, Hardik deceiving each other on Patel reservation: Jaitley                                              Saeed's release order: Pak 'hoodwinking' global community                                              Will not modify Govt order banning pet coke, furnace oil: SC                                              Chennai: Student's suicide triggers violence in Sathyabama University                                              People have cancer because of their sins: Assam Health Minister                                              Zimbabwe's ex-VP Mnangagwa to be sworn in as President                                              Russia, Iran, Turkey agree to hold Syrian 'congress'                                              SE Asia, S Asia beginning to emerge as regional powers: Australia FM                                              Tibet wants to stay with China, seeks development: Dalai Lama                                              Here's when Federer felt insulted                                              BCCI has lost its reputation: Anurag Thakur                                              Hong Kong Open: Sindhu advances to quarter finals                                              Virat Kohli slams poor planning by BCCI ahead of SA tour                                              Kaumudi Facebook
       SCI&TECH Next Article: After Mars, ISRO eyes Venus and Jupiter  
       NASA to launch two robotic probes to study early solar system
 
         Posted on :17:23:03 Jan 5, 2017
   
A A
       Last edited on:17:23:03 Jan 5, 2017
         Tags: NASA, robotic probes, solar system
 
WASHINGTON: NASA has announced two robotic missions to asteroids that will 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 the 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.
 
Lucy, a robotic spacecraft, is scheduled to launch in October 2021. It is slated to arrive at its first destination, a main belt asteroid, in 2025.
 
From 2027 to 2033, Lucy will explore six Jupiter Trojan asteroids. These asteroids are trapped by Jupiter's gravity in two swarms that share the planet's orbit, one leading and one trailing Jupiter in its 12-year circuit around the Sun.
 
The Trojans are thought to be relics of a much earlier era in the history of the solar system, and may have formed far beyond Jupiter's current orbit.
 
"Because the Trojans are remnants of the primordial material that formed the outer planets, they hold vital clues to deciphering the history of the solar system," said Harold F Levison, principal investigator of the Lucy mission from the Southwest Research Institute in Boulder, Colorado.
 
"Lucy, like the human fossil for which it is named, will revolutionise the understanding of our origins," said Levison.
 
The Psyche mission, targeted to launch in October of 2023, will explore one of the most intriguing targets in the main asteroid belt – a giant metal asteroid, known as 16 Psyche, about three times farther away from the sun than is the Earth.
 
This asteroid measures about 210 kilometres in diameter and, unlike most other asteroids that are rocky or icy bodies, is thought to be comprised mostly of metallic iron and nickel, similar to Earth's core.
 
Scientists wonder whether Psyche could be an exposed core of an early planet that could have been as large as Mars, but which lost its rocky outer layers due to a number of violent collisions billions of years ago.
 
The mission will help scientists understand how planets and other bodies separated into their layers – including cores, mantles and crusts – early in their histories.
 
"This is an opportunity to explore a new type of world – not one of rock or ice, but of metal," said Psyche Principal Investigator Lindy Elkins-Tanton of Arizona State University.
 
"16 Psyche is the only known object of its kind in the solar system, and this is the only way humans will ever visit a core. We learn about inner space by visiting outer space," said Elkins-Tanton.
 
Psyche, also a robotic mission, will be arriving at the asteroid in 2030, following an Earth gravity assist spacecraft manoeuvre in 2024 and a Mars flyby in 2025. 
A A
       SCI&TECH
Next Article: After Mars, ISRO eyes Venus and Jupiter
 
 
SCI&TECH HEADLINES
How breastmilk protects babies from food allergy decoded  
Stars among the oldest in our galaxy discovered  
Apple delays release of smart speaker - HomePod  
Owning a dog may add years to your life  
'Textisms' actually add meaning to written words  
Sugar may heal wounds, says study  
Heart-stopping sex? It's rare  
Over 1.3 lakh Indians 'book ticket' to Mars  
China all set to make first contact with aliens  
Greenland Ice sheet could be losing mass, says study  
'Flying taxis' could be a thing by 2020  
When art comes to the rescue of depressed patients  
Here's a mechanism that can help you get rid of bad memories  
2017 ozone hole smallest since 1988: NASA  
Marijuana can dull the brain in some HIV patients  
We use lesser brainpower than thought  
You can soon delete 'sent messages' on WhatsApp  
There is a connection between nose and emotions  
75% of pet reptiles die within a year: Study  
Gamma rays will reach beyond limits of light: Researchers  
Suicide molecules may help combat cancer: Study  
Aspirin a day may keep liver cancer away  
Clearing the myths about osteoporosis  
Stress as unhealthy as junk food  
Planet Nine does exist in solar system: NASA  
 
Do you think that all charges against actor Dileep under various IPC sections will stand in the court?
yes
 
no
 
no opinion
 
 
 
Home Kerala India World Business Sports Sci&Tech Education Automobile CityNews Movies Environment Letters 
© Copyright keralakaumudi Online 2011  |  Reproduction in whole or in part without written permission is prohibited.
Head Office Address: Kaumudi Buildings, Pettah P.O, Trivandrum - 695024, India.
Online queries talk to Deepu Sasidharan, + 91 98472 38959 or Email deepu[at]kaumudi.com
Customer Service -Advertisement Disclaimer Statement   |  Copyright Policy