Classifying Galaxies

Scientists classify everything from the smallest cells to the largest galaxies, but how do they decide on a classification system? Scholars use 40 pictures of galaxies taken by the Hubble Space Telescope to sort and try creating their...

Sal gives an example of where the Hubble telescope looks, as well as the level of detail that the camera can see. 

Sometimes fuzzy, sometimes irregularly shaped—and occasionally cannibalistic? These are just a few of the remarkable galactic facts contained in a short video that's sure to amaze! The narrator describes the four main types of galaxies,...

Worlds within worlds! Journey to galaxies near and far with a thought-provoking video. Young astronomers learn how scientists detected very distant galaxies using their electromagnetic signatures far outside the visible range. Other...

Prepare to be amazed! Look deep into the darkest part of the night sky, courtesy of a video from a vast physics playlist. Young astronomers see hundreds of galaxies through the eye of the Hubble Telescope. 

Could there really be over 200 billion galaxies? It turns out the number may be closer to two trillion galaxies! A video presentation discusses the existence of galaxies in the universe. The narrator explains how scientists make their...

Scholars are more likely to remember a photograph or a diagram than the text on the same page. How have images shaped our understanding of science? The video highlights images from the work of Copernicus, Darwin, Einstein, the Hubble...

The Milky Way belongs to a cluster of galaxies called the local group and it could be considered our neighborhood! Use the PowerPoint to present information on the different galaxy types, both local and farther away. Scholars learn how...

Add a little color to the universe. Learners recreate images of the galaxies using real data and Photoshop software. They display their images in a Hubble tuning fork diagram by classifying and categorizing their shapes.

Once, scientists believed black holes to be rare, but modern technology is proving otherwise. Using data from the Hubble telescope, scientists create computer models of distant galaxies. They discover super massive black holes in the...