0
All mass distorts space and time. The more mass is concentrated in an area, the greater the distortion. In most cases it is too small to be noticed, but the distortion becomes severe with a black hole. Within the event horizon all paths forward in time go toward the center, so nothing that enters, including light, can ever leave.
Wiki User
∙ 8y ago
Wiki User
∙ 10y agoLight can certainly fall into a black hole, but once it crosses the event horizon it can never exit, thus, it can't "pass through". The gravitational force inside a black hole is such that the escape velocity exceeds the speed of light. The event horizon marks the boundary at which the escape velocity is equal to the speed of light; thus neither light nor matter could pass through it since neither could exceed light speed.
Wiki User
∙ 12y agoAs the Universe expanded, it cooled to a temperature at which photons could no longer be created nor destroyed.
The temperature was still high enough for electrons and nuclei to remain unbound.
However, photons were constantly "reflected" from these free electrons through Thomson scattering [See related link]
Because of this repeated scattering, the early Universe was opaque to light.
Wiki User
∙ 8y agoIonic particles are opaque.
Add your answer:
Earn +20 pts
What is background microwave?
microwave background radiation is a thermal radiation left from the early stage of universe when it was much small and much hotter and filled with uniformly distributed opaque fog of hydrogen plasma
How might the objects found in the early universe differ from the objects found in the universe now?
In the early universe there was only Hydrogen and Helium (and a smidgen of Lithium).
When astronomers say that the universe became transparent years after the big bang what do they mean?
In the early period after the Big Bang, the universe consisted of a plasma of nuclei, electrons and photons. These protons were bound in the plasma and not free to move about. About 0.4 million years after the Big Bang, when the universe had cooled to around 4000 K, photons stopped being in thermal equilibrium with matter: the universe became transparent to photons - light could move about.
What is inflation universe?
That is the idea that at some very early stage of its development (a fraction of a second after the Big Bang), the Universe expanded extremely fast.That is the idea that at some very early stage of its development (a fraction of a second after the Big Bang), the Universe expanded extremely fast.That is the idea that at some very early stage of its development (a fraction of a second after the Big Bang), the Universe expanded extremely fast.That is the idea that at some very early stage of its development (a fraction of a second after the Big Bang), the Universe expanded extremely fast.
The Doppler shifting of radiation from the early universe has resulted in today's universe being bathed in a sea of?
Cosmic Microwave Background (CMB) Radiation.
What is background microwave?
microwave background radiation is a thermal radiation left from the early stage of universe when it was much small and much hotter and filled with uniformly distributed opaque fog of hydrogen plasma
What was the universe like immediately after the big bang?
Very hot, very compact and very opaque.
Why cant you directly observed any era prior to the era of atoms?
Because up until then (universe about a third of a million years old) the universe was opaque.
How could the cooling of the universe over time support the theory that it is expanding?
OK, when our universe born it was much smaller and hotter and it was filled with uniformly distributed opaque fog of hydrogen plasma. Over the time when universe cools down electrons and protons together forms the neutral atoms and these atoms No longer absorb the thermal radiation and thus expansion of our universe from very first second to this date make our universe transparent instead of being opaque and by this way CMBR explain the expansion and evolution of our universe
What region of the early universe was most likely to become a galaxy?
None, the early universe was nearly homogeneous.
How did the early universe transition from black darkness to light?
The way I understand it, there wasn't "black darkness"; the early Universe was very hot, and therefore very bright. However, there was a time when the Universe was opaque (i.e., not transparent); when the temperature went below about 3000 kelvin, it started to become transparent.
How might the objects found in the early universe differ from the objects found in the universe now?
In the early universe there was only Hydrogen and Helium (and a smidgen of Lithium).
What is the embryonic universe?
That means, the Universe in its early stages of development.
Before there were stars what elements were produced by nuclear fusion in the early universe?
Before the stars the meter and meteorites were produced by nuclear fusion in the early universe.
Is tin foil Translucent Transparent opaque?
Aluminum foil is opaque.
Who did early people think was the center of the universe?
the earth
What is a brick wall translucent transparent and opaque?
Opaque
