The Big Bang
... Expansion of the Universe • In 1929 Edwin Hubble found link between distances to galaxies and their radial velocities • Plot Hubble's data ...
... Expansion of the Universe • In 1929 Edwin Hubble found link between distances to galaxies and their radial velocities • Plot Hubble's data ...
knowledge quiz - Discovery Education
... C. It has a higher mass than planets, moons, and asteroids. D. all of the above 2. Constellations are groups of stars in particular regions of the sky. Which of the following is not a constellation? A. Cassiopeia B. sun C. Orion D. Pleiades, also known as The Seven Sisters 3. Nuclear reactions that ...
... C. It has a higher mass than planets, moons, and asteroids. D. all of the above 2. Constellations are groups of stars in particular regions of the sky. Which of the following is not a constellation? A. Cassiopeia B. sun C. Orion D. Pleiades, also known as The Seven Sisters 3. Nuclear reactions that ...
Origins of the Universe
... • The primeval explosion of space, time, matter and energy that most astronomers think gave rise to the universe as we see it today. • Occurred about 13.7 billion years ago • Thought to have expanded within a second from something the size of a spec of dust to the size of our solar system. Misconcep ...
... • The primeval explosion of space, time, matter and energy that most astronomers think gave rise to the universe as we see it today. • Occurred about 13.7 billion years ago • Thought to have expanded within a second from something the size of a spec of dust to the size of our solar system. Misconcep ...
Where a limit?
... "Cedar" the Touch: 01 hour, 48 minutes. A world championship: the first cosmonaut of a planet (on April, 12th, 1961 has made flight by spaceship "East"); the maximum cargo lifted into an orbit — 4725 kg; мах. Flight height — 327 km that remains a record till today. ...
... "Cedar" the Touch: 01 hour, 48 minutes. A world championship: the first cosmonaut of a planet (on April, 12th, 1961 has made flight by spaceship "East"); the maximum cargo lifted into an orbit — 4725 kg; мах. Flight height — 327 km that remains a record till today. ...
Deep Space and Solar System
... • One light year is how far light travels in one year (based on distance NOT time) • We see all night stars as they were when the light we see left each star ...
... • One light year is how far light travels in one year (based on distance NOT time) • We see all night stars as they were when the light we see left each star ...
13800000000 Years Ago The First Sky
... Age of the Universe = 13800000000 Years Size of our Universe = 13800000000 Light Years = 100000000000000000000000 kilo-meters !!! ...
... Age of the Universe = 13800000000 Years Size of our Universe = 13800000000 Light Years = 100000000000000000000000 kilo-meters !!! ...
Studying Space Chapter 26 Notes
... of planets, stars, black holes, formation of our earth Benefits to humans may include finding new sources of energy May help protect us from disasters such as collisions between Earth and Asteroids ...
... of planets, stars, black holes, formation of our earth Benefits to humans may include finding new sources of energy May help protect us from disasters such as collisions between Earth and Asteroids ...
Origins Of The Universe
... concentrated into a single incredibly tiny point This began to enlarge rapidly in a hot explosion, and it is still expanding today – this Big Bang happened about 15 billion years ago ...
... concentrated into a single incredibly tiny point This began to enlarge rapidly in a hot explosion, and it is still expanding today – this Big Bang happened about 15 billion years ago ...
Stars, Galaxies, and the Universe
... • A white dwarf is is a star that has used up all of its hydrogen and is the leftover center of an older star. • Class F stars are yellow-white • The majority of stars in our galaxy are main sequence stars. ...
... • A white dwarf is is a star that has used up all of its hydrogen and is the leftover center of an older star. • Class F stars are yellow-white • The majority of stars in our galaxy are main sequence stars. ...
Astronomy Quiz #1 Answers
... 7. What are the two important discoveries made by Edwin Hubble? -many galaxies existed beyond the Milky Way -almost all galaxies are moving away from each other ...
... 7. What are the two important discoveries made by Edwin Hubble? -many galaxies existed beyond the Milky Way -almost all galaxies are moving away from each other ...
10.1 PPT
... Hubble proposed that the universe is expanding. The galaxies which are further away from Earth are moving apart faster than those closer to Earth. He used the analogy comparing an uncooked loaf of raisin bread to one that is put into the oven. As the dough rises the raisins (galaxies) are moving fur ...
... Hubble proposed that the universe is expanding. The galaxies which are further away from Earth are moving apart faster than those closer to Earth. He used the analogy comparing an uncooked loaf of raisin bread to one that is put into the oven. As the dough rises the raisins (galaxies) are moving fur ...
Lesson 1- Space
... • Probes- Scan with X-rays, microwaves and other forms of light. Take lots and lots of pictures • Math and Logic- We can determine the distance and size of objects using observation and calculation ...
... • Probes- Scan with X-rays, microwaves and other forms of light. Take lots and lots of pictures • Math and Logic- We can determine the distance and size of objects using observation and calculation ...
2014 Joseph E. Pesce, Ph.D. 1 Astro 113 Final Exam Review 1. What
... 4. Suppose the Hubble constant, H = 60 (km/sec)/Mpc. A Certain galaxy is known to be 100 Mpc from the Milky Way Galaxy. According to Hubble's Law, how fast will we see this galaxy to be ...
... 4. Suppose the Hubble constant, H = 60 (km/sec)/Mpc. A Certain galaxy is known to be 100 Mpc from the Milky Way Galaxy. According to Hubble's Law, how fast will we see this galaxy to be ...
Earth - Capital High School
... The Hubble Ultra Deep Field, or HUDF, is an image of a small region of space in the constellation Fornax, composited from Hubble Space Telescope data accumulated over a period from September 3, 2003 through January 16, 2004. It is the deepest image of the universe ever taken in visible light, lookin ...
... The Hubble Ultra Deep Field, or HUDF, is an image of a small region of space in the constellation Fornax, composited from Hubble Space Telescope data accumulated over a period from September 3, 2003 through January 16, 2004. It is the deepest image of the universe ever taken in visible light, lookin ...
Observable universe
The observable universe consists of the galaxies and other matter that can, in principle, be observed from Earth at the present time because light and other signals from these objects has had time to reach the Earth since the beginning of the cosmological expansion. Assuming the universe is isotropic, the distance to the edge of the observable universe is roughly the same in every direction. That is, the observable universe is a spherical volume (a ball) centered on the observer. Every location in the Universe has its own observable universe, which may or may not overlap with the one centered on Earth.The word observable used in this sense does not depend on whether modern technology actually permits detection of radiation from an object in this region (or indeed on whether there is any radiation to detect). It simply indicates that it is possible in principle for light or other signals from the object to reach an observer on Earth. In practice, we can see light only from as far back as the time of photon decoupling in the recombination epoch. That is when particles were first able to emit photons that were not quickly re-absorbed by other particles. Before then, the Universe was filled with a plasma that was opaque to photons.The surface of last scattering is the collection of points in space at the exact distance that photons from the time of photon decoupling just reach us today. These are the photons we detect today as cosmic microwave background radiation (CMBR). However, with future technology, it may be possible to observe the still older relic neutrino background, or even more distant events via gravitational waves (which also should move at the speed of light). Sometimes astrophysicists distinguish between the visible universe, which includes only signals emitted since recombination—and the observable universe, which includes signals since the beginning of the cosmological expansion (the Big Bang in traditional cosmology, the end of the inflationary epoch in modern cosmology). According to calculations, the comoving distance (current proper distance) to particles from the CMBR, which represent the radius of the visible universe, is about 14.0 billion parsecs (about 45.7 billion light years), while the comoving distance to the edge of the observable universe is about 14.3 billion parsecs (about 46.6 billion light years), about 2% larger.The best estimate of the age of the universe as of 2015 is 7010137990000000000♠13.799±0.021 billion years but due to the expansion of space humans are observing objects that were originally much closer but are now considerably farther away (as defined in terms of cosmological proper distance, which is equal to the comoving distance at the present time) than a static 13.8 billion light-years distance. It is estimated that the diameter of the observable universe is about 28 gigaparsecs (91 billion light-years, 8.8×1026 metres or 5.5×1023 miles), putting the edge of the observable universe at about 46–47 billion light-years away.