Bookmark Kaumudi Online  Bookmark this site  Editor@Kaumudi  |  Marketing  Print Advt rates  |  Calendar 2018        Go!    
 
 
April 21, Saturday 2018 9:29 AM       

       HEADLINES: We have lost a socially-committed editor: Governor                                              K M Mani condoles M S Ravi's demise                                              Kadakampally, Kerala Working Journalist Union condole demise of Kerala Kaumudi Chief Editor                                              Kathua fake hartal arsonists to face POCSO charges                                              Opposition's five charges against CJI Dipak Misra                                              Jaitley terms impeachment motion against CJI a 'revenge petition'                                              Impeachment motion against CJI a political move: Constitution expert                                              Cuba marks end of era as Castro hands over power                                              PM Modi should pay more attention to women safety: IMF chief                                              Sheikh Hasina makes it to Time's list of 100 most influential people                                              Ships don't want to stop at Chinese run Hambantota                                              Cricket Australia to name Lehmann's replacement before UK tour                                              ECB proposes new 100-ball format of cricket                                              World Cup of tennis in one week is horrible idea: Anand Amritraj                                              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
NASA may soon identify 2,400 alien planets  
What triggers depression among adults?  
Turn your hobbies into part-time job opportunities with these apps  
Apple launches special RED Edition for iPhone 8, 8 Plus  
Humanity‚Äôs first flight to Sun to launch in July: NASA  
This World Health Day, let's focus on eye health  
Are babies being introduced to solid food too soon?  
New organ found in human body, could help understand spread of cancer  
Audio-enabled autoplay videos will soon be blocked on Google Chrome  
China hospital to employ AI to address doctor shortage  
A new ray of hope for breast cancer patients!  
Here is how you can travel smart using these apps!  
5 most important aspects of our lives driven by technology  
This telehealth program offers hope for diabetics  
New habitable planet found near our solar system  
Going light with the new Light Phone 2  
What will happen to this beautiful blue planet?  
Liver cancer: New method identifies splicing biomarkers  
Astronomers reveal secrets of most distant supernova ever detected  
Ensuring sexual, reproductive health for overall well-being  
WeChat gets popular in Bhutan: report  
Celebrate love this Valentine's Day with Google Pixel 2  
This drug could reverse alcohol's damaging effects on brain  
Scientists discover enormous reserves of mercury in permafrost  
Google Assistant helps you set music alarms  
 
Sreejith case: Do you think arrested policemen are innocent?
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