Many
planetary systems far beyond the sun have large, close - in planets.
McMaster researchers who have modelled
planetary systems far beyond our own solar system have found that massive moons larger than Mars might be the best bet.
Not exact matches
We extract science by carefully modeling all the ways in which the spacecraft and the instruments themselves could have caused the apparent brightness of a
planetary system to change over time... We are pretty sure we can trust our models of Spitzer down to about a part in 10,000; we are in uncharted territory as
far as detector behavior is concerned.»
Most of the attention in exoplanet research has so
far focused on the inner parts of
planetary systems, roughly within a distance equivalent to the orbit of Jupiter, for the simple reason that that's all existing detection methods can see.
This makes TRAPPIST - 1 the
planetary system with the largest number of Earth - sized planets discovered so
far.
«A magnetic field protects the atmosphere of a planet or moon, and the atmosphere protects the surface,» says study coauthor Sonia Tikoo, a
planetary scientist at Rutgers University in New Brunswick, N.J. Together, the two protect the potential habitability of the planet or moon, possibly those
far beyond our solar
system.
The odds of a
planetary system containing habitable worlds
far enough away from these stellar explosions increases
far from the galactic center, peaking in the outer edges of the spiral arms, the team will report in an upcoming issue of the International Journal of Astrobiology.
The
further you go out in a
planetary system, the less metal you have to build planets.»
Haumea is a much larger object
further out in the solar
system, and together with the centaurs can help scientists learn more about
planetary rings in general, writes Amanda A. Sickafoose, astronomer at MIT and the South African Astronomical Observatory, in a Nature commentary.
Last year's historic close flyby of Pluto by NASA's New Horizons spacecraft put the outer Solar
System firmly back in the spotlight, providing both scientists and the general public with ground - breaking and revolutionary discoveries about the
far - off little world in the outer reaches of the Sun's
planetary family.
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.
-- If the central star of a
planetary system burns out, there will be no
further evolution of life on the planets that have orbits around it.
In the fictional universe of Star Trek: Voyager, the crew of a Federation starship comes in contact with the denizens of
planetary systems many thousands of light - years away from Earth, while being stranded on the
far side of the galaxy.
The more heavy water, the colder the environment was in which the water formed, meaning it likely came from
farther away in the disk — or may even pre-date the disk, since it's easier for heavy water to form in the molecular cloud that spawned the star and
planetary system than in a dust disk.
On Wednesday, February 2, 2011, NASA's Kepler Mission revealed that, thus
far, it has detected 1,235
planetary candidates orbiting 907 host stars, from a survey of some 155,453 stars in constellations Cygnus and Lyra using the transit method which requires a rare orbital alignment across the face of the host star as seen from the Solar
System.
«Using T - B's law, we tried to predict where there could be more planets
further out in the
planetary systems,» Steffen Kjær Jacobsen, a PhD student at the Niels Bohr Institute at the University of Copenhagen, said in a statement.
This stunning video shows all the
planetary systems with more than one planet discovered by the Kepler telescope so
far.
A
further example of the technology spearhead role is an all - new double electric motor
system driving both rear wheels, connected together by
planetary gears.
A cynical view suggests that all the talk about the recession fostering frugality, living within one's means, and the virtues of helping and being helped by one's community is just talk, and that what's actually happening is that people are building up a deep well of perceived deprivation, a backlog of buying, such that when the economy recovers we'll see another binge of overconsumption, carrying us
farther still from a satisfying life and speeding the collapse of
planetary life support
systems.
However, I think we have actually traveled
far enough in the common human journey to recognize that we are merely a part of this
planetary system and therefore, must re-imagine our role in a closed ecology.
In essence, the
Planetary Boundary analysis simply identifies Earth
System processes that — in the same manner as climate — regulate the stability of the Earth
System, and if impacted too
far by human activities potentially can disrupt the functioning of the Earth
System.
It turned out things were
far more nuanced (as he later said, «The Earth
system may be less responsive in the warm times than it was in the cold times»), but in a field that had long mainly foreseen smooth curves for
planetary change with rising greenhouse gas levels, the result was a vital focus on the risks of abrupt climate change.
There is
far too little data to inform us on how the rest of the
planetary system will react over the next 50 or 100 years.
Modern research have
further confirmed that: (1) the
planetary orbital periods can be approximately deduced from a simple
system of resonant frequencies; (2) the solar
system oscillates with a specific set of gravitational frequencies, and many of them (e.g. within the range between 3 yr and 100 yr) can be approximately constructed as harmonics of a base period of ∼ 178.38 yr; (3) solar and climate records are also characterized by
planetary harmonics from the monthly to the millennia time scales.