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Futuristic light tunnel. Abstract background
Futuristic light tunnel, time space tunnel loop animation
Getty Images
Futuristic light tunnel. Abstract background
Futuristic light tunnel, time space tunnel loop animation
Getty Images
Astrophysics. Animation, zoom out from our Milky Way galaxy to show the cosmic web, or large scale structure of the Universe. Credit Greg Bacon/STScI/NASA Goddard Space Flight Center
Astrophysics. Animation, zoom out from our Milky Way galaxy to show the cosmic web, or large scale structure of the Universe. Credit Greg Bacon/STScI/NASA Goddard Space Flight Center
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Astrophysics. Animation of a Cepheid variable star varying in brightness in the arm of a spiral galaxy.
A Cepheid is a star that varies in light intensity over regular, measurable periods. The period of pulsation is directly related to a Cepheid's intrinsic brightness making observations of these stars useful for determining distance. ...
Crash Course
Crash Course Astronomy #38: Galaxies, Part 1
The Milky Way is our neighborhood in the universe. It's a galaxy and there are many others out there. Galaxies contain gas, dust, and billions of stars or more. They come in four main shapes: elliptical, spiral, peculiar, and irregular....