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illustration image for  Dark matter and Dark energy (Part 1) – Discovering the main components of the Universe

Dark matter and Dark energy (Part 1) – Discovering the main components of the Universe

astroEDU educational activity (links to astroEDU website)
Description: Lets' investigate gravity, dark matter and dark energy with some very simple experiments!

Glosar de termeni: Dark Energy , Dark Matter , Gravity , Universe
Categories: Cosmology , Physics
Tags: Experiment , Galaxies
Age Ranges: 12-14 , 14-16 , 16-19 , 19+
Education Level: Informal , Middle School
Areas of Learning: Guided-discovery learning , Interactive Lecture , Modelling , Observation based , Other , Problem-solving
Costs: Low Cost
Duration: 45 mins
Group Size: Group
Skills: Constructing explanations , Developing and using models , Engaging in argument from evidence , Planning and carrying out investigations
Authors: Tran Dong Thai Han, Massimo Viola, Henk Hoekstra

License: Creative Commons Atribuire 4.0 Internațional (CC BY 4.0) Creative Commons Atribuire 4.0 Internațional (CC BY 4.0) icons


illustration image for  Dark matter & dark energy (Part 2) – Understanding the nature of dark matter and dark energy

Dark matter & dark energy (Part 2) – Understanding the nature of dark matter and dark energy

astroEDU educational activity (links to astroEDU website)
Description: Let's investigate the nature of dark matter and energy with gravitational lensing!

Glosar de termeni: Dark Energy , Dark Matter , Gravitational Lens , Gravity , Universe
Categories: Cosmology , Physics
Tags: Experiment , Invisible
Age Ranges: 12-14 , 14-16 , 16-19 , 19+
Education Level: Informal , Middle School
Areas of Learning: Guided-discovery learning , Interactive Lecture , Modelling , Problem-solving
Costs: Medium Cost
Duration: 45 mins
Group Size: Group
Skills: Constructing explanations , Developing and using models , Engaging in argument from evidence
Authors: Tran Dong Thai Han, Henk Hoekstra, Massimo Viola

License: Creative Commons Atribuire 4.0 Internațional (CC BY 4.0) Creative Commons Atribuire 4.0 Internațional (CC BY 4.0) icons


Measurements of how gravity distorts light in the galaxy cluster ZwCl0024+1652, shows a "ring" of dark matter in blue

Dark matter

image

Caption: This image of the galaxy cluster ZwCl0024+1652 is created using mathematical modelling, together with observations from the Hubble Space Telescope (HST). The Hubble observations were taken in November 2004 by the Advanced Camera for Surveys (ACS). The exquisite resolution of the ACS, allowed very detailed measurements to be made of the gravitational lensing in the cluster. The blue nebulosity is a superimposed ""map"" of the dark matter distribution in the galaxy cluster and is not visible in the observations, but is a mathematical model created based on the gravitational lensing data. The ""dark matter ring"" the is present in the image is one of the strongest pieces of evidence to date for the existence of dark matter. Observational data provides evidence that Dark matter makes up about 1/4 of the Universe, and is believed to make up the underlying structure of the cosmos. In addition, a large percentage the mass in galaxies and galaxy clusters is dark matter, which is not visible via direct observations.
Credit: NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University)
Credit Link

Glosar de termeni: Dark Matter
Categories: Cosmology

License: Creative Commons Atribuire 4.0 Internațional (CC BY 4.0) Creative Commons Atribuire 4.0 Internațional (CC BY 4.0) icons

Fișier ( image 12.30 MB)


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