Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


Shooting stars hold answers to universe questions

Shooting stars hold answers to questions about universe

Meteors – the shooting stars occasionally flashing through the night sky – could help answer questions about the origin of our solar system.
Professor Jack Baggaley at the University of Canterbury has been awarded a grant from the competitive Marsden Fund to determine the exact source of the many tiny grains of dust we see as shooting stars as they burn after entering the Earth’s atmosphere.

Most of these dust grains originate in our own solar system as debris left over from the break-up of comets. However, a small proportion enter our atmosphere coming directly from interstellar space – the vast regions between the stars. These particles form dust clouds in space which are known to be the nurseries for young stars, newly formed planetary systems and perhaps life itself.
The trail left by meteors as they plunge into the atmosphere can be detected with the help of radar techniques by bouncing a radio signal off the moving particle and recording the echo. New Zealand is home to a unique radar facility, the Advanced Meteor Orbit Radar or AMOR, which can determine accurate positions for the meteor’s trail. Using this technique, Professor Baggaley has already been able to demonstrate that some of the fiery dust grains piercing the Earth’s atmosphere enter at much higher speed and a different angle from the majority of particles.

The conclusion that, while most of the dust grains come from within the solar system, a small percentage indeed originates in outer space, brought Professor Baggaley’s group acclaim in the international science community. The group will further improve the AMOR system by building a second antenna pointing in a different direction to the original setup. This will greatly enhance the group’s ability to detect the meteors of interstellar origin and to determine their properties. The group is also working with scientists from the European Space Agency, comparing their data with those obtained from space probes such as Galileo and Ulysses.

Their results will lead to a better understanding of interstellar dust and its role in the formation of planetary systems such as our solar system.
Professor Baggaley’s grant is worth $145,000 for the first year, and $135,000 for each of the following two years.

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

I Sing The Highway Electric: Charge Net NZ To Connect New Zealand

BMW is turning Middle Earth electric after today announcing a substantial contribution to the charging network Charge Net NZ. This landmark partnership will enable Kiwis to drive their electric vehicles (EVs) right across New Zealand through the installation of a fast charging highway stretching from Kaitaia to Invercargill. More>>

ALSO:

Watch This Space: Mahia Rocket Lab Launch Site Officially Opened

Economic Development Minster Steven Joyce today opened New Zealand’s first orbital launch site, Rocket Lab Launch Complex 1, on the Mahia Peninsula on the North Island’s east coast. More>>

Earlier:

Marketing Rocks!
Ig Nobel Award Winners Assess The Personality Of Rocks

A Massey University marketing lecturer has received the 2016 Ig Nobel Prize for economics for a research project that asked university students to describe the “brand personalities” of three rocks. More>>

ALSO:

Nurofen Promotion: Reckitt Benckiser To Plead Guilty To Misleading Ads

Reckitt Benckiser (New Zealand) intends to plead guilty to charges of misleading consumers over the way it promoted a range of Nurofen products, the Commerce Commission says. More>>

ALSO:

Half A Billion Accounts, Including Xtra: Yahoo Confirms Huge Data Breach

The account information may have included names, email addresses, telephone numbers, dates of birth, hashed passwords (the vast majority with bcrypt) and, in some cases, encrypted or unencrypted security questions and answers. More>>

ALSO:

Rural Branches: Westpac To Close 19 Branches, ANZ Looks At 7

Westpac confirms it will close nineteen branches across the country; ANZ closes its Ngaruawahia branch and is consulting on plans to close six more branches; The bank workers union says many of its members are nervous about their futures and asking ... More>>

Interest Rates: RBNZ's Wheeler Keeps OCR At 2%

Reserve Bank governor Graeme Wheeler kept the official cash rate at 2 percent and said more easing will be needed to get inflation back within the target band. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news