Browse 15
072 astronomy background photos and images available
Or start a new search to explore more photos and images. Browse Getty Images' premium collection of high-quality
Authentic Astronomy Background stock photos
Royalty-free images
And pictures.
Explore the cosmos and beyond at one of the finest centers for astronomical studies in the world. Astronomy is the scientific study of celestial objects
Space and the physical universe. The Bachelor of Science in Astronomy is an intensive program that builds on a strong foundation of mathematics
Physics and astrophysics.
The development of astronomy is brought about by both theoretical and observational work. The objects we are investigating are diverse:
«] THE NATURE OF ASTRONOMY Astronomy is defined as the study of the objects that lie beyond our planet Earth and the processes by which these objects interact with one another. We will see
Though
That it is much more.
Browse 15,072 astronomy background photos and images available, or start a new search to explore more photos and images. Browse Getty Images' premium collection of high-quality, authentic Astronomy Background stock photos, royalty-free images, and pictures.
Explore the cosmos and beyond at one of the finest centers for astronomical studies in the world. Astronomy is the scientific study of celestial objects, space and the physical universe. The Bachelor of Science in Astronomy is an intensive program that builds on a strong foundation of mathematics, physics and astrophysics.
The development of astronomy is brought about by both theoretical and observational work. The objects we are investigating are diverse: moons, planets, stars, space plasma, galaxies, clusters of galaxies, active galactic nuclei, large scale structures of the Universe, and the Universe itself.
Topics referred to by the same term
Background may refer to:
Topics referred to by the same term
NASA satellite of the Explorer program
The Cosmic Background Explorer
Also referred to as Explorer 66
Was a NASA satellite dedicated to cosmology
Which operated from 1989 to 1993.Its goals were to investigate the cosmic microwave background radiation of the universe and provide measurements that would help shape our understanding of the cosmos.
Electromagnetic radiation from the Big Bang
Cosmic background radiation is electromagnetic radiation that fills all space.The origin of this radiation depends on the region of the spectrum that is observed.One component is the cosmic microwave background.This component is redshifted photons that have freely streamed from an epoch when the Universe became transparent for the first time to radiation.Its discovery and detailed observations of its properties are considered one of the major confirmations of the Big Bang.The discovery of the cosmic background radiation suggests that the early universe was dominated by a radiation field
A field of extremely high temperature and pressure.
The diffuse extragalactic background radiation (DEBRA) refers to the photon field of extragalactic origin that fills our Universe.It contains photons whose energies span more than twenty orders of magnitude
From 10−7 eV to more than 100 GeV.This range covers everything from the microwaves emitted by free hydrogen atoms to ultra high-energy gamma rays
Which can only be emitted by the most powerful physical processes in the modern universe such as :
Kilonovas and merging black holes.
Random background of gravitational waves permeating the Universe
The gravitational wave background is a random background of gravitational waves permeating the Universe
Which is detectable by gravitational-wave experiments
Like pulsar timing arrays.The signal may be intrinsically random
Like from stochastic processes in the early Universe
Or may be produced by an incoherent superposition of a large number of weak independent unresolved gravitational-wave sources
Like supermassive black-hole binaries.Detecting the gravitational wave background can provide information that is inaccessible by any other means
About astrophysical source population
Like hypothetical ancient supermassive black-hole binaries
And early Universe processes
Like hypothetical primordial inflation and cosmic strings.
1920 debate between Harlow Shapley and Heber Curtis on whether there were other galaxies
Also called the Shapley–Curtis Debate
Was held on 26 April 1920 at the Smithsonian Museum of Natural History
Between the astronomers Harlow Shapley and Heber Curtis.It concerned the nature of so-called spiral nebulae and the size of the universe.Shapley believed that these nebulae were relatively small and lay within the outskirts of the Milky Way galaxy
While Curtis held that they were in fact independent galaxies
Implying that they were exceedingly large and distant.
The observed X-ray background is thought to result from
The galactic X-ray background
AndAt the hard end
From a combination of many unresolved X-ray sources outside of the Milky Way
The cosmic X-ray background (CXB).
