«Now that we know such large changes occur, we think of
hydrogen escape from Mars less as a slow and steady leak and more as an episodic flow — rising and falling with season and perhaps punctuated by strong bursts,» said Michael Chaffin, a scientist at the University of Colorado Boulder's Laboratory for Atmospheric and Space Physics who is on the Imaging Ultraviolet Spectrograph (IUVS) team.
«MAVEN is giving us unprecedented detail about
hydrogen escape from the upper atmosphere of Mars, and this is crucial for helping us figure out the total amount of water lost over billions of years,» said Ali Rahmati, a MAVEN team member at the University of California at Berkeley who analyzed data from two of the spacecraft's instruments.
«Now that we know such large changes occur, we think of
hydrogen escape from Mars less as a slow and steady leak and more as an episodic flow — rising and falling with season and perhaps punctuated by strong bursts,» said Michael Chaffin, a scientist at the University of Colorado at Boulder who is on the Imaging Ultraviolet Spectrograph (IUVS) team.
Not exact matches
If the earth were slightly larger, having a stronger gravitational force, it would prevent
hydrogen, a light gas,
from escaping at a specified rate, building up in our atmosphere and eventually rendering our planet lifeless.
Radiation — in the form of photons — can't easily
escape from hydrogen on the pulsar's surface.
These storms are helping
hydrogen from water vapor
escape from the Red Planet, a new study finds.
There, the coal is partially oxidized; the gas which
escapes from the second pipe is a mixture of syngas (carbon monoxide and
hydrogen) and carbon dioxide and a little methane.
«Immense cloud of
hydrogen discovered
escaping from exoplanet the size of Neptune.»
This environment would have limited black holes
from growing very big as molecular
hydrogen turned gas into stars far enough away to
escape the black holes» gravitational pull.
Hope will probe the link between processes in the lower atmosphere, which contains most of the martian atmosphere's water vapor, and the
escape of
hydrogen and oxygen
from the upper atmosphere.
Once the venting go - ahead was given, crews were unable to begin until 2:30 p.m., almost 24 hours after the accident began, and by that time, it was too late to prevent
hydrogen from escaping the containment and gathering at the top of Unit 1.
The radiation
from the parent star is basically evaporating the atmosphere, sufficiently energizing
hydrogen atoms that they can
escape gravitationally unbound
from the atmosphere.
As the last of the light
from the Big Bang
escaped, the universe — now about 378,000 years old — would have been a dark place, with no sources of light to illuminate its fog of cooling, neutral
hydrogen gas.
If the quasar is so distant that the light we observe
from it
escaped during the «dark ages», its UV light will have been absorbed by the neutral
hydrogen present at the time; if the quasar is closer and the light we observe was emitted only after the reionisation, there will have been no neutral
hydrogen to impede it (see diagram below).