Volcanism, Misra said, may help distinguish between oxygen that is produced by life or
other planetary processes by helping astronomers better understand the planet's environment.
Not exact matches
We need not anthropocentrically imagine the evolutionary
process to culminate in man, for it is quite conceivable that in time it might bypass man and the entire class of mammals to favor some very different species capable of a greater complexity than man can achieve; if not here on earth, then in some
other planetary system.
This
process is called accretion, and you can see it at work over and over again in real life as we currently can watch
other new (
planetary systems) forming in our own galaxy with a large thing called a telescope.
Even if we suppose that, by prolonging its existence on a scale of
planetary longevity, the human species will eventually find itself with a chemically exhausted Earth beneath its feet, is not Man even now in
process of developing astronautical means which will enable him to go elsewhere and continue his destiny in some
other corner of the firmament?
«During the past few years our group,» says David Jones, an astrophysicist at the IAC and another of the authors on the paper, «has discovered that the
planetary nebulae with the biggest discrepancies in their abundances are usually associated with binary central stars which have been through a phase with a common envelope, that is to say the
process of expansion of the more massive of the two stars has meant that the
other star is orbiting within its outer atmosphere, and the viscosity has brought the stars very close to one another.
The discovery of strangely ordered
planetary systems around
other stars showed that the formation
process can not be so tidy after all.
His team found that by tuning the model so that the pebble formation
process takes a bit longer, there is more time for the large
planetary embryos to interact with each
other gravitationally.
One way to address the issue would be to observe the
process occurring in
other, younger
planetary systems, but that would require making observations that
planetary scientists haven't yet been able to manage.
This is a new geological phenomenon, which doesn't happen on Earth, and could be vital to understanding similar
processes on
other planetary surfaces.»
Wolszczan and
others have already found more than 40
planetary systems around red giants, allowing them to sketch out how the same
process will play out here at home.
By drilling into a circular ridge inside the 180 - kilometer - wide crater rim, researchers also hope to nail down the
processes that form «peak rings»: hallmarks of the largest impact craters, which
planetary scientists have seen elsewhere in the solar system but which erosion has erased from
other big craters on Earth.
Observations of the planets, satellites, and small bodies in the Solar system provide indispensable information about planet formation and evolution
processes that remain unattainable for
other planetary systems.
Such a result indeed indicates that
planetary space weather could be far more intense in environments
other than our Solar System hence understanding its features and
processes could also be of help when investigating the characteristics of
other Solar Systems as well as the exoplanet physics.
Especially if it's linked with
other processes that can help habitability such as CME avoidance and increased
planetary magnetic field strength.
There are multiple causes of the detailed
processes involved in global amphibian declines and extinctions [107]--[108], but global warming is a key contributor and portends a
planetary - scale mass extinction in the making unless action is taken to stabilize climate while also fighting biodiversity's
other threats [109].
Our
Planetary Boundaries research identifies that there are also
other processes critical to the functioning of the Earth System that are so impacted by human activities that they, too, demand management at the global level.
There are multiple causes of the detailed
processes involved in global amphibian declines and extinctions [107]--[108], but global warming is a key contributor and portends a
planetary - scale mass extinction in the making unless action is taken to stabilize climate while also fighting biodiversity's
other threats [109].
Outstanding questions include whether MJO events are commonly preceded by an earlier occurrence and, if so, what role the previous cycle plays in initiating a new MJO event; whether the
processes that drive the moistening of the troposphere affect MJO behavior; and whether
other large
planetary waves — such as Rossby waves — can help trigger the next MJO.