| Interplanetary space (14) |  |
| Interstellar space (19) | |
#Rare molecule found in space hints at life s origins The discovery of an unusual carbon-based molecule near the galactic center of the Milky way suggests that the complex molecules needed for life may have their origins in interstellar space.
This detection opens a new frontier in the complexity of molecules that can be formed in interstellar space
The discovery should help us better understand how our star interacts with the Milky way including how harmful cosmic rays from interstellar space manage to sneak through the solar system's magnetic barrier.
At the same time a stream of particles blowing out from the sun the solar wind inflates a bubble of plasma around the solar system called the heliosphere Astronomers have assumed long that the sun's motion through the galaxy squashes
and spreads the heliosphere into a bullet shape with an extended tail at the back (see image).
when charged particles from the solar wind collide with other charged particles in the outer heliosphere Some of these neutral atoms are bounced back towards us.
The magnetic field of the heliosphere protects us from the bulk of these galactic high-energy particles. But some manage to impinge on our solar system
and interact with gases in the interstellar medium creating mini versions of these enigmatic astrophysical phenomena in the lab for the first time.
At about the distance of the Kuiper belt the region past Neptune where comets are born the would-be planet cores can't get much bigger than a millimetre.
--and that it came from interstellar space.##That s certainly something to ponder the next time you drink a glass of water.#
#If water in the early Solar system was inherited primarily as ice from interstellar space then it is likely that similar ices
#The researchers concluded that a significant portion of Earth s water came from interstellar space by looking at the relative abundance of hydrogen and deuterium.#
#In interstellar space for example water ice contains lots of deuterium thanks to the freezing cold temperatures and ionizing radiation.
Because of that the researchers estimate that anywhere between 7 and 50 percent of Earth s water had to have come from the interstellar medium in
And since other solar systems would have formed in the same interstellar medium the findings suggest that the origins of water On earth were not unique
or escapes into intergalactic space and travels until it hits something such as another star, planet, or very occasionally a telescope mirror.'
known as Ladee. he presence of neon in the exosphere of the moon has been a subject of speculation since the Apollo missions,
The moon atmosphere is referred technically to as an exosphere because it so thin. Exospheres are the most common type of atmosphere in our solar system,
so scientists are keen to learn more about them. t's critical to learn about the lunar exosphere before sustained human exploration substantially alters it,
Dr Benna said. Since the moon's atmosphere is so thin, rocket exhaust from spacecraft could easily change its composition.
Most of the moon's exosphere comes from the solar wind, which is a thin stream of electrically conducting gas blown from the surface of the sun into space at around a million miles per hour.
Ladee NMS instrument confirmed the moon exosphere is made up of mostly helium, argon, and neon.
which allowed the team to understand how they are supplied to the exosphere, and how they are lost ultimately.
While most of the lunar exosphere comes from the solar wind, the readings showed that some gas comes from lunar rocks.
The team also noted that a second surprising behaviour of argon that the overall amount in the lunar exosphere was not constant over time.
Ladee readings also revealed an unexpected source of some of the helium in the lunar exosphere. bout 20 percent of the helium is coming from the moon itself, most likely as the result from the decay of radioactive thorium and uranium
"And more data from the European space agency's Herschel Space observatory reveal that 51 Eridani is surrounded also by a more distant and colder cometary belt, much like the Kuiper belt of comets beyond Neptune in the Solar system."
or escapes into intergalactic space and travels until it hits something, such as another star, a planet,
of which was to investigate the scattering of pulsars--the cores of dead stars--by interstellar gas.
The wavelengths that make Sagittarius A*visible are scattered by interstellar gas along the line of sight in the same way that light is scattered by fog On earth.
The theory and observations allow us to make statements about the interstellar gas responsible for the scattering
and his colleagues directly confirm these indirect inferences about the size of Sagittarius A*they were also able to provide new information about fluctuations in the interstellar gas that cause scattering.
They are essential to the chemistry that takes place in the interstellar medium by providing gas molecules with a surface on
and control much of the energy balance in the interstellar medium. Not least, in the early stages of a star evolution the dust can coagulate into large clumps the first step towards forming planets.
and dust in interstellar space collapses gravitationally, accumulating mass. A disk of orbiting material forms around the young star,
and is shrouded by thick clouds of interstellar gas and dust. Circinus X-1 is also the source of a surprisingly powerful jet of high-energy particles. t really hard to get accurate distance measurements in astronomy
and even to interstellar space. e
#The HEADPHONES that detect brain damage: Pioneering device tracks changes in pressure caused by injury and infection Doctors have developed a brain pressure test using a special set of headphones that can detect life-threatening head injuries and infections.
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