Bookmark Kaumudi Online  Bookmark this site  Editor@Kaumudi  |  Marketing  Print Advt rates  |  Calendar 2012        Go!    
 
 
April 27, Thursday 2017 3:04 AM       

       HEADLINES: Oppn to boycott Minister Mani in assembly                                              Chennithala writes to Yechury demanding Mani’s ouster                                              Pinarayi comes down heavily on strike by Pembilai Orumai                                              Assembly adjourned after uproar over Mani issue                                              Is there need for deafening horns in govt vehicles, asks Human Rights Commission                                              EVM wave, not Modi wave: AAP on losing MCD polls                                              Terrorism will recoil on those who nurture it: India                                              Poll symbol case: AIADMK leader sent to 5-day police custody                                              Terrorism will recoil on those who nurture it: India                                              20 killed in clashes in DR Congo's Kasai region: UN                                              Jadhav case: India hands over mother's appeal to Pak                                              Brilliant Uthappa powers KKR to top of IPL 10                                              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
Spacecraft flies between Saturn and rings in historic 1st  
Google targets 'fake news,' offensive search suggestions  
Offensive WhatsApp posts can land group admin in jail  
Facebook for 'everyone' and not just high end: Zuckerberg  
Google Earth re-invented for new era  
NASA images show how India looks from space at night  
Signs of life detected below world's deepest point  
'iPhones assembly in Bengaluru by Apple in less than a month'  
Five astronauts assigned to future ISS mission: NASA  
Trump plans to send humans to Mars  
First patient cured of rare blood disorder'  
Indian-American teen wins top science award worth USD 250,000  
'New extension may improve inflight WiFi'  
Frogs can see colour in extreme darkness: study  
NASA may put astronauts on deep space test flight  
Juno to remain in current orbit around Jupiter: NASA  
US man receives new face from donor  
Over 100 new potential planets spotted  
ISRO to launch record 104 satellites on Feb 15  
Now, video-makers can live stream on YouTube  
Music, drugs stimulate same part of brain: study  
Facebook adds tool for helping in times of crisis  
Moon may have formed from collision of tiny 'moonlets'  
China to set up world's highest altitude telescopes in Tibet  
NASA to launch two robotic probes to study early solar system  
 
Should Senkumar be reinstated as DGP, law and order?
yes
 
no
 
don't know
 
 
 
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