Cosmic Radiation I have always loved anything that has to do with space, weather it was space travel, planets and the cosmos. When Neil Armstrong first walked on the Moon it was a breathtaking step for humanity. With Curiosity, the robotic rover exploring Mars and Space X a company ready to take any passengers to explore space, we are always pushing the envelope to explore the deepest reach of space. But one thing I have always wondered is cosmic radiation. Cosmic radiation is a big part of creating earth and it affects us in many ways. Were going to look deep into what Cosmic Radiation is and also the effects it has on earth and us. Cosmic radiation is a collection of many different types of radiation from many different types of sources. When people speak simply of cosmic radiation they are usually referring specifically to the cosmic microwave background radiation. This consists of very, very low energy photons whose spectrum is peaked in the microwave region and which are remnants from the time when the universe was only about 200,000 years old. On top of these there are higher energy particles that are being created constantly by all luminous objects in the universe. Our sun, other stars, gamma-ray bursts and so on are creating photons of all different energies/wavelengths. These objects also produce high-energy massive particles such as electrons, protons and anti-protons. These higher energy particles are potentially dangerous, but most of these particles never make it to the earth. They are usually deflected by earth’s magnetic fields or they decay in flight. Different cosmic radiation can pass earth defense and those are the one that can be harmful. Gamma ray burst and Solar flares are the ones that can pass through the earth magnetic field and create catastrophic effects on earth. According to Scitechdaily.Com, Dr Neuhӓuser a Astrophysicist he comments: “If the gamma ray burst had been much closer to the Earth it would have caused significant harm to the biosphere. But even thousands of light years away, a similar event today could cause havoc with the sensitive electronic systems that advanced societies have come to depend on.”
Solar flares on the other hand are caused by the sun’s surface as a large energy release of up to sixth times total energy output of the sun. The release of vast amounts of
replenishing the conveyor belt.
ANALYSIS: Cosmic Background and Cloud Bunnies
The steady state hypothesis vaporized away when the cosmic microwave background (CMB) radiation was accidentally discovered in the mid-1960s. This was the much-hypothesized afterglow as predicted by Big Bang theory. Primeval photons, attenuated by the stretching of space, were still hanging around as Big Bang fossils. Steady state theory cannot any account for this relic radiation. But now we have the “eternal universe inflation”…
us beyond the reach of earthly particle accelerators like the Large Hadron Collider and provide information about the physics of matter and energy. On March 17, 2014 there was a press conference held by the leadership of the Background Imaging of Cosmic Extragalactic Polarization (BICEP2) experiment announcing their discovery of proof of gravitational waves, which were predicted in Einstein’s theory of General Relativity. The waves were generated by a
near - instantaneous expansion of the universe…
experience the fabric of quantum geometry itself.
No space observatories have been able to detect anything as long ago and far away as the very early eras of the universe described by the new paradigm. But a few observatories have come close. Cosmic background radiation has been detected in an era when the universe was only 380,000 years old. By that time, after a period of rapid expansion called "inflation," the universe had burst out into a much-diluted version of its earlier super-compressed self. At…
point, and then started to get bigger and expand so quickly in a hot explosion. This was the big bang. It is said that the universe is still expanding today.The Big Bang happened around 13.7 billion years ago.
Astronomers have found a cosmic microwave background radiation (CMBR) that is apparently the heat left over from the original explosion.
The Doppler effect is where there is a change in both wavelength and frequency.For example, when a police car goes past, the siren is high-pitched when…
of space that is produced in the vicinity of a massive object and is responsible for the force we call gravity. The overall geometry of the Universe, may also be carved, depending on its overall mass energy content (Bennett, 2012).
Cosmic Microwave Background Radiation (CMBR)
According to the theories of physics, if we were to look at the Universe one second after the Big Bang, what we would see is a 10-billion degree sea of neutrons, protons, electrons, anti-electrons positrons, photons, and neutrinos…
Evidence to the theory CMBR
There are many pieces of evidence supporting the Big Bang theory such as Cosmic microwave background radiation, also known as CMBR. Cosmic microwave background is the afterglow radiation that was left over after the big bang. Scientists use this as evidence because there are traces of the radiation all across the universe. This type of radiation shifts toward the microwave section of the Electro Magnetic Spectrum. Microwaves are invisible to the naked eye,…
theory reasonably explains the origin of
our universe few seconds after its formation but it does not answer what happened before
those few seconds. (after this massive blast the universe expanded at a trillion-trillionth of a
The Cosmic Inflation Theory was introduced in 1980s by American physicist Alan
Guth to support early stages of the classical Big Bang Theory. This theory suggests that our
universe has drastically expanded after the big bang compared to how we experience…
interplanetary magnetic field, sunspot
number, and probability of large solar
energetic particle events. The researchers
found that the risk of space weather radiation events will likely increase noticeably over the next century compared with
recent decades and that lower solar activity will lead to increased galactic cosmic
ray levels. (Geophysical Research Letters,
doi:10.1029/ 2 011GL048489, 2011) —EB
How ocean ridges affect large-s cale
Northern Hemisphere sea ice…
themselves. This phenomenon is most easily observed in the heavy elements, like uranium, and unstable isotopes, like carbon-14.
3- How to measure rate of decays
The number of decay per second is called decay rate. Decay rate is measured by radiation detection instruments
4- Units of decay rate
There are two units for decay rate the old one is called Curie (in honor of Marie Curie the discoverer of Radium) and a newer one called Becquerel ( in honor of Henry Becquerel the discoverer of…
i. The most explosive events associated with sunspots are solar flares. Flares are brief outbursts that release enormous quantities of energy that appear as a sudden brightening of the region above sunspot clusters. During the event, radiation and fast-moving atomic particles are ejected, causing the solar wind to intensify. When the ejected particles reach Earth and disturb the atmosphere, radio communication is disrupted and the auroras, also called the northern and southern lights,…