MAST: Barbara A. Mikulski Archive for Space Telescopes
Map of the Universe from Johns Hopkins University and others.....
Johns Hopkins University (JHU) continues to pad its space community résumé with their interactive map, “The map of the observable Universe”,
that takes viewers on a 13.7-billion-year-old tour of the cosmos from the present to the moments after the Big Bang.
While JHU is responsible for creating the site, additional contributions were made by NASA, the European Space Agency,
the National Science Foundation, and the Sloan Foundation.
JWST's weekly observing schedule:
NASA's Unverse of Learning
An Integrated AstroPhisics STEM Learning and Literacy program
A 300 Year Old Mystery Solved: Why Saturn's Moon Iapetus Is Half-Light, Half-Dark
Image CREDIT: NASA / JPL-Caltech / Space Science Institute / Cassini.
Cassini developed a THEORY about this moon, now known as Iapetus.
He contended that first off, Iapetus must be two-toned, with one side significantly
lighter and brighter than the other, darker side, and that secondly, it must be tidally locked to Saturn,
so that the same side always faces it. Put this together and the “leading edge” of Iapetus
would have to be significantly fainter and darker than the trailing edge. If, that is, Cassini was right.
Both Hemispheres of IAPETUS
Image CREDIT: NASA / JPL / Space Science Institute.
Iapetus was very much two-toned, with one hemisphere a factor of ten-to-twenty
times more reflective than the other. The situation was even more severe than Cassini
himself had ever imagined, as the delineation between light-and-dark hemispheres doesn’t
perfectly coincide with Iapetus’ orbit.
Enhanced-color map of Iapetus, using data collected by the Cassini probe. The leading hemisphere is at the right.
Credit: NASA/JPL-Caltech/SSI/LPI
Three different false-color views of Saturn’s moon Iapetus, showing the boundary of the global “color dichotomy”.
Credit: NASA/JPL/Space Science Institute
Saturn’s moon Iapetus, captured by the Cassini space probe on New Year’s Eve 2004.
Credit: NASA/JPL/Space Science Institute.
IAPETUS' ORBIT
Image CREDIT: English Wikipedia user The Singing Badger.
Iapetus, you see, is the outermost large moon of Saturn, orbiting twice
as far out as any of Saturn’s other moons. What appears to be some type of
dark debris that collected on the leading side — an effect similar to “bugs on a windshield”
— would be an awfully bizarre explanation, since it’s well outside of the other major players in Saturn’s system,
Iapetus is a small and one of the most mysterious objects in the solar system.
So here i explain what would standing on this weird moon would be like.
Intro and outro footage made with Space Engine.
Music: Kevin Macleod - Ossuary 5
What’s This Ridge on Iapetus?
Published on Jul 20, 2015
The strangest feature on Iapetus is the equatorial ridge. What could possibly create a feature like this?
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Twitter resources
Team: Fraser Cain - @fcain
Jason Harmer - @jasoncharmer
Susie Murph - @susiemmurph
Brian Koberlein - @briankoberlein
Chad Weber - weber.chad@gmail.com
Kevin Gill - @kevinmgill
Created by: Fraser Cain and Jason Harmer
Edited by: Chad Weber
Music: Left Spine Down - “X-Ray”
Exploring The Mysteries of Iapetus Up-close - Moon of Saturn
In this video, I take a look at the most puzzling features of Iapetus and see what
they imply about what could be viewed on its surface.
Intro, outro, and other clips in the video were made with Space Engine.
Music:
1. At the Foot of the Sphinx - Twin Musicom
2. Huma-Huma - Nevada City
3. Kevin MacLeod - Lost Frontier
4. Space Coast - Topher Mohr and Alex Elena
Iapetus Is Currently Smashing Into Saturn's Rings | Our Solar System's Moons
