push and pull how the milky way flies
Last Updated : GMT 06:49:16
Arab Today, arab today
Arab Today, arab today
Last Updated : GMT 06:49:16
Arab Today, arab today

Push and pull: How the Milky Way flies

Arab Today, arab today

Arab Today, arab today Push and pull: How the Milky Way flies

This computer generated image released
Paris - AFP

It may not feel like it, but our Milky Way galaxy is barrelling through the Universe at more than two million kilometres (1.24 million miles) per hour.

On Monday, astronomers said they had discovered a void in deep space that helps explain the direction in which we are headed, and our speed.

It turns out our galaxy is not only being pulled by galactic forces, but pushed as well, they wrote in the journal Nature Astronomy.

The earth may feel steady under our feet, but humanity's small corner of the Universe is subject to an array of forces.

The Earth spins on its axis at about 1,600 kilometres per hour and around the Sun at some 100,000 km/h.

The Sun, in turn, travels at 850,000 km/h as it orbits the centre of our galaxy, zipping through the expanding Universe. 

But how? 

For a long time scientists have assumed a dense region of the Universe was drawing the Milky Way toward it through gravitational pull.

In the 1980s, suspicion fell on an area called the Great Attractor -- a cluster of half-a-dozen galaxy clusters some 150 million light years from the Milky Way.

"But the direction (of the attraction) was not quite right," study co-author Daniel Pomarede of France's Alternative Energies and Atomic Energy Commission (CEA) told AFP.

So astronomers turned their attention some 600 million lightyears beyond the Great Attractor to an area of more than two dozen galaxy clusters called the Shapley Concentration.


This still did not sufficiently explain the Milky Way's speed or direction.

On Monday, Pomarede and a team said they had found the missing link: our galaxy is not only being pulled, but pushed as well.

By constructing a 3D map of the flow of galaxies through space, they discovered a previously unknown, large region mostly devoid of galaxies which they believe is repelling the Milky Way and its neighbouring galaxy Andromeda.

They have called it the Dipole Repeller.

"In addition to being pulled towards the known Shapley Concentration, we are also being pushed away from the newly discovered Dipole Repeller," said co-author Yehuda Hoffman of the Hebrew University of Jerusalem.

"It has become apparent that push and pull are of comparable importance at our location."

arabstoday
arabstoday

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

push and pull how the milky way flies push and pull how the milky way flies

 



Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

push and pull how the milky way flies push and pull how the milky way flies

 



GMT 16:16 2014 Wednesday ,10 September

Samirah Ibrahim receives Saudi cultural attaché

GMT 09:32 2017 Sunday ,24 September

China confirms will limit oil exports to North Korea

GMT 19:56 2016 Saturday ,17 September

Typhoon Meranti death toll rises to 28

GMT 09:40 2018 Monday ,01 January

OIC Summit opens in Kazakhstan

GMT 06:37 2015 Monday ,07 December

Iran film directors protest colleague's jail term

GMT 18:37 2017 Friday ,25 August

Mental health issues should be prioritized

GMT 04:39 2017 Thursday ,31 August

Trump vows to right 'self-destructive' tax code

GMT 05:29 2017 Tuesday ,22 August

Celebrations across India on 71st Independence Day

GMT 10:54 2017 Wednesday ,11 October

Child obesity grows tenfold since 1975

GMT 02:31 2016 Tuesday ,06 December

Dubai Women Establishment delegation participates

GMT 04:29 2018 Wednesday ,19 September

North and South Korea: Kim and Moon hail new future

GMT 14:18 2013 Monday ,19 August

Newlywed Lebanese couple pose at car bomb site

GMT 11:11 2011 Friday ,12 August

Palestinian university ranks seventh in Arab world

GMT 15:16 2015 Wednesday ,26 August

UAE ambassador attends charity ceremony in Qalubiya

GMT 16:59 2016 Tuesday ,26 July

Hedge funds in new cycle of oil short-selling
Arab Today, arab today
 
 Arab Today Facebook,arab today facebook  Arab Today Twitter,arab today twitter Arab Today Rss,arab today rss  Arab Today Youtube,arab today youtube  Arab Today Youtube,arab today youtube

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©

arabstoday arabstoday arabstoday arabstoday
arabstoday arabstoday arabstoday
arabstoday
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
arabstoday, Arabstoday, Arabstoday