And the planet orbits so closely that bursts
of radiation from the star might have wiped out any chance of life.
Not exact matches
Either they necessitate a deceptive «God», e.g. creating starlight «in transit» which means that for some light the
star that supposedly sent said light would never have actually existed, or they would cause effect that should be evident but are not, e.g. temporarily fast starlight would effectively cook many things, such as life on earth, if the required light (and attendant gamma
radiation) were compressed into a significantly shorter time frame (think
of the
radiation from the apparent 13 billion years
of the universe arriving at the same time, or even over a 1000 years).
These include the products
of radioactive decay, cosmic rays (the highest - energy form
of electromagnetic
radiation known to man), and the stellar wind, a stream
of particles that fly out
from any
star as it continuously burns.
4s) then photons erupted
from this energy cloud (detectable today as the microwave background
radiation) 5s) photons and other particles form the bodies
of the early universe (atoms, molecules,
stars, planets, galaxies) 6s) it rained on the early earth until it was cool enough for oceans to form 7s) the first life form was blue green bacteria.
Secondly, that this light and stable «cream»
of any given
star, having escaped beyond the reach
of the tempest
of energy blazing at the heart
of the parent - body, may yet remain sufficiently close to it to derive a moderate benefit
from its
radiations: for the large molecules need energy for their synthesis.
4) then photons erupted
from this energy 4) let there be LIGHT (1 - 4 all the first day) cloud (detectable today as the microwave background
radiation) 5) photons and other particles form the 5) God next creates the heavens (what we call the sky) above bodies
of the early universe (atoms, (2nd day) molecules,
stars, planets, galaxies) 6) it rained on the early earth until it was 6) dry land appears as the oceans form (3rd day) cool enough for oceans to form 7) the first life form was blue green bacteria.
In the hopes
of seeing the gas clouds
from which the first
stars arose, Loeb has devoted much
of the past decade to a new field called 21 - centimeter cosmology, a branch
of radio astronomy that focuses on identifying electromagnetic
radiation that started out with a wavelength
of 21 centimeters.
Infrared
radiation passes through interstellar dust much more easily than visible light, so by looking at the infrared light
from a galaxy we can learn about the new
stars forming within the clouds
of dust and gas.
Taken with the orbiting Chandra Observatory, it shows the hottest, most violent objects in the galaxy: black holes gobbling down matter, gas heated to millions
of degrees by dense, whirling neutron
stars, and the high - energy
radiation from stars that have exploded, sending out vast amounts
of material that slam into surrounding gas, creating shock waves that heat the gas tremendously, generating X-rays.
Enormous clouds
of these tiny grains scatter and absorb some
of the
radiation emitted
from the
stars — especially visible light — limiting what can be seen by telescopes here on Earth.
The lack
of infrared glow
from the galaxy across a broad range
of wavelengths, however, suggests that there's very little dust there to absorb and then re-radiate the
stars»
radiation, the team notes.
This suggests that lightning might be most likely on planets with plenty
of light and
radiation from a host
star to create wind.
Powerful
radiation from supermassive black holes at the center
of most large galaxies creates winds that can blow gas out
of the galaxies, halting
star formation.
These opaque blobs resemble drops
of ink floating in a strawberry cocktail, their whimsical shapes sculpted by powerful
radiation coming
from the nearby brilliant young
stars.
Emission nebulae like IC 2944 are composed mostly
of hydrogen gas that glows in a distinctive shade
of red, due to the intense
radiation from the many brilliant newborn
stars.
«The evidence that these new gravitational waves are
from merging neutron
stars has been captured, for the first time, by observatories on Earth and in orbit that detect electromagnetic
radiation, including visible light and other wavelengths,» said Chad Hanna, assistant professor
of physics and
of astronomy & astrophysics and Freed Early Career Professor at Penn State.
The country's newest space lab, Tiangong - 2, for example, hosts a number
of scientific payloads, including an advanced atomic clock and a $ 3.4 - million detector called POLAR for the study
of γ - ray bursts — blasts
of high - energy
radiation from collapsing
stars and other sources.
Taken with Juno's
star - tracking navigation camera, the shot reveals that «heaven looks the same to us
from Jupiter,» said Heidi Becker, leader
of Juno's
radiation monitoring team at NASA's Jet Propulsion Laboratory in Pasadena, Calif..
But if that was the case they should have annihilated in a blaze
of radiation, leaving nothing
from which to make the
stars and galaxies.
Gregg Hallinan
of the California Institute
of Technology and colleagues have detected both types
of radiation from what appears to be a brown dwarf, an object that straddles the boundary between planet and
star.
Although Proxima Centauri's dimness provides the planet with a balmy climate, the
star is prone to outbursts
of harsh X-ray and ultraviolet
radiation, which could damage any chance
of life on the planet — X-rays hit the surface 400 times more often than those
from the sun pummel Earth.
By observing the combined infrared
radiation of star and planet with Spitzer and then subtracting the
radiation recorded
from the
star alone when it hid the planet, Deming and Charbonneau had detected the heat
of the planet itself.
The Australian telescope was one
of several payloads carried into space by the shuttle Endeavour to observe ultraviolet
radiation from stars and galaxies.
A computer model developed by the team suggests that the grains must reach the size
of boulders within a million years; otherwise, the dust particles and circumstellar gases will be blown apart by fierce ultraviolet
radiation from the nebula's hottest, most massive young
stars.
Charcoal - black world HD 149026b (illustrated here) absorbs most
of the
radiation it gets
from its very nearby
star, pushing temperatures to 3700 degrees Fahrenheit, above the boiling point
of lead.
Known as pulsars, the dead
stars emit beams
of radiation that sweep past Earth at regular intervals, like the rotating beams
from a lighthouse.
Using data gleaned
from the Hubble telescope, researchers have calculated the amount
of ultraviolet (UV)
radiation the planets receive
from their
star, a Hubble press release reports.
There the only stray
radiation the observatory would have to compensate for would come
from stars, the trace debris
of comets and asteroids, and the telescope's own electronics (which would sit on a boom several yards away).
These are fast - moving knots
of bright gas that seem to be shielded somehow
from the harsh
radiation of a nebula's dying
star.
In a 2008 study, Haiman and his colleagues hypothesized that
radiation from a massive neighboring galaxy could split molecular hydrogen into atomic hydrogen and cause the nascent black hole and its host galaxy to collapse rather than spawn new clusters
of stars.
Bright beams
of radiation shine
from the
stars» magnetic poles.
There are many open questions about 55 Cancri e, especially: Why has the atmosphere not been stripped away
from the planet, given the perilous
radiation environment
of the
star?
The spacecraft's telescopes are sensitive to
radiation from the hot outer atmospheres
of stars like the Sun and white dwarfs, formed when
stars about the size
of the Sun reach the end
of their lives.
«While these systems are interesting, they are dark in any other form
of radiation and relatively little can be understood
from them compared to binary neutron
star systems.
But the high - energy
radiation from the source has shown no sign
of dying down, which suggests that astronomers may have caught a
star in the process
of being ripped to shreds by a black hole.
The lava on the dayside would reflect
radiation from the
star, contributing to the overall observed temperature
of the planet.
Stars quickly clear dust away
from their vicinity by the force
of their
radiation, so the presence
of a dusty disc suggests collisions between asteroids or comets are replenishing it.
Temperatures in the low stratosphere rise because
of molecules absorbing
radiation from the
star (right).
New observations show that tiny galaxies in the early universe could have triggered the epoch
of reionization — a period when harsh
radiation tore apart hydrogen atoms — which astronomers consider key to understanding how
stars and galaxies arose
from the universe's early dark void.
A sensitive new
radiation detector enables astronomers to explore regions
of the universe hidden
from optical telescopes, such as sites where
stars are now being born
«The UV
radiation from a massive
star will ionize and heat up disks
of gas surrounding nearby low - mass
stars,» Bally says.
Using computer models and distinctive
radiation seen
from a previous supernova explosion, theorists had already suspected that turbulence at the center
of a supernova would propel bullets
of iron - rich material through a
star's outer layers.
Once formed,
radiation from the
stars would blow away the rest
of the gas cloud.
In a very massive
star, photon
radiation — the outward flux
of photons that is generated due to the
star's very high interior temperatures — pushes gas
from the
star outward in opposition to the gravitational force that pulls the gas back in.
This is where
radiation from distant
stars is brought to a focus by the Sun's gravitational field, which would allow a visiting probe to resolve objects at the centre
of...
Another team used ground - based telescopes to look for
radiation from gas and dust spiraling onto dozens
of brown dwarfs and low - mass
stars — the largest such survey conducted to date.
Astronomers have known for about a decade ultraviolet and X-ray
radiation from the main
star in HD 189733 are evaporating the atmosphere
of HD 189733b over time.
A nearby
star features a comet - like tail that could be the outer reaches
of a protoplanetary disk evaporating under the intense ultraviolet
radiation from IRS 2.
These so - called starbursts are difficult to observe
from Earth, as their dusty shrouds absorb much
of the optical light
from the
stars and re-radiate it as longer - wavelength
radiation to which Earth's atmosphere is mostly opaque.
Material falling
from the exploded
star onto the compact companion would have been heated and blasted back into space in two narrow jets, along with a beam
of radiation.