stk201531s


stk201531s

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Format  Dimensions  Price
Web 960x1200 10,00
Print 1750x2188 40,00
HighRes 3684x4605 150,00

Notes on the format

Web Sufficient for online, social media, EBook, blog, etc.
Print For orientation: A4 has 2480x3508 pixels at 300 dpi, A5 has 1748x2480 pixels at A5
HighRes The original format of the image





Picture no.

8864378

Licence

Royalty-Free

Model Release Agreement

not necessary

Property Release Agreement

not necessary

Price category

Premium

Description

Using the unique orbit of the Spitzer Space Telescope and a depth-perceiving trick called parallax, astronomers have determined the distance to an invisible Milky Way object called OGLE-2005-SMC-001. This artist's concept illustrates how this trick works: different views from both Spitzer and telescopes on Earth are combined to give depth perception. Our Milky Way galaxy is heavier than it looks, and scientists use the term dark matter to describe all the heavy stuff in the universe that seems to be present but invisible to our telescopes. While much of this dark matter is likely made up of exotic materials, different from the ordinary particles that make up the world around us, some may consist of dark celestial bodies, like planets, black holes, or failed stars, that do not produce light or are too faint to detect from Earth. OGLE-2005-SMC-001 is one of these dark celestial bodies. Although astronomers cannot see a dark body, they can sense its presence from the way light acts around it. When a dark body like OGLE-2005-SMC-001 passes in front of a bright star, its gravity causes the background starlight to bend and brighten, a process called gravitational microlensing. When the observing telescope, dark body, and star system are closely aligned, the microlensing event reaches maximum, or peak, brightness. A team of astronomers first sensed OGLE-2005-SMC-001's presence when it passed in front of a star in a neighboring satellite galaxy called the Small Magellanic Cloud. In this artist's rendering, the satellite galaxy is depicted as the fuzzy structure sitting to the left of Earth. Once they detected this microlensing event, the scientists used Spitzer and the principle of parallax to figure out its distance.

Author

StocktrekImages

Copyright

Zoonar/Stocktrek Images

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