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.
It is the first time a ring has been discovered around a trans - neptunian object, and it shows that the presence of rings could be much more common than was previously thought, in our Solar System as well as in
other planetary systems.
«One of the most startling discoveries about
other planetary systems has been that the most common type of planet out there has a mass between that of Earth and that of Neptune,» says Batygin.
«We imagined we were going to find
other planetary systems in our own image,» says Andrew Howard, an astronomer at the University of Hawaii.
The new findings are observational evidence supporting the idea that icy bodies are also present in
other planetary systems, and have survived throughout the history of the star's evolution.
Julia Fang and Jean - Luc Margot at the University of California, Los Angeles, wanted to find out whether
other planetary systems are full, or if they also have unoccupied but stable orbital slots in between their planets.
By observing these systems, we can answer questions such as: Are
other planetary systems like our own?
«We want to characterize stars that are similar to our own solar system, because that's our best guess as to what
other planetary systems might have life.»
The team plans to use the same technique on
other planetary systems in the hope of teasing out some answers, but Winn and another of the paper's co-authors, astrophysicist Daniel Fabrycky of the University of California, Santa Cruz, already have a theory.
Water delivery via asteroids or comets is likely taking place in many
other planetary systems, just as it happened on Earth, new research strongly suggests.
Is that the case for
other planetary systems, too?
Our Solar system, and
other planetary systems, began life with disks of gas and dust grains around a young star.
The new study suggests that the «hot Jupiter» WASP - 18b, a massive planet that orbits very close to its host star, has an unusual composition, and the formation of this world might have been quite different from that of Jupiter as well as gas giants in
other planetary systems.
And although the study focused on this particular star — known as WD 1425 +540 — the fact that its planetary system shares characteristics with our solar system strongly suggests that
other planetary systems would also.The researchers observed WD 1425 +540 with the Keck Telescope in 2008 and 2014, and with the Hubble Space Telescope in 2014.
«We would like to know whether in
other planetary systems Kuiper belts exist with large quantities of water that could be added to otherwise dry planets,» he said.
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.
«One of the most startling discoveries about
other planetary systems has been that the most common type of planet out there has a mass between that of Earth and that of Neptune,» said Batygin.
«Because moons are numerous in our solar system, they are likely very common in
other planetary systems.
Astronomers have long wondered whether
other planetary systems have bodies with properties similar to those in the Kuiper belt, and the new study appears to confirm for the first time that one such body exists.
The scientists analyzed Kepler - 32 ′ s structure, compared it with
other planetary systems discovered by NASA's Kepler space telescope and sat down to do some math.
Starting in 2014 a US - led team will begin a GPI survey of up to 600 nearby stars, which will provide family portraits of dozens, if not hundreds of
other planetary systems.
Astronomers also assume that some planets in
other planetary systems were formed by gravitational instability.
Ford said that the research team's results have implications for many
other planetary systems.
The high precision of the Kepler space telescope has allowed us to detect planets that are the size of Earth and somewhat smaller, but no previous planets have been found that ar... ▽ More Since the discovery of the first exoplanet we have known that
other planetary systems can look quite unlike our own.
«We now know more about TRAPPIST - 1 than
any other planetary system apart from our own,» says Sean Carey, co-author of the new study.
The new findings support the notion that belts of icy bodies are also in
other planetary systems, and have persisted throughout their star's development.
«We now know more about TRAPPIST - 1 than
any other planetary system apart from our own,» said Sean Carey, manager of the Spitzer Science Center at Caltech / IPAC in Pasadena, California, and co-author of the new study.
They seek answers to questions about the structure of the universe, the formation of our solar system and
other planetary systems, the behavior and transformation of matter when subjected to extreme conditions, the origin of life, the function of genes, and the development of organisms from single - celled egg to adult.
Not exact matches
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.
It has expanded our understanding of the forces that made Saturn and its environs, our solar
system and, by extension,
other stellar and
planetary systems throughout the cosmos what they are today.
But
other planetary scientists, including Jonathan Lunine of Cornell University in Ithaca, New York, note that JWST will also use its infrared eyes to peer at planets both inside the Solar
System and beyond.
When our solar
system was in its infancy 4.5 billion years ago, a swarm of protoplanets swirled around the sun — some of which coalesced into larger and larger masses, while
others were blasted to smithereens in a demolition derby of
planetary proportions.
It may seem like a trivial distinction for something billions of years old, but it could make a difference when pinning down the conditions that led to the solar
system's formation, says Bouvier, and those needed for
other life - friendly
planetary systems to form.
The discovery of strangely ordered
planetary systems around
other stars showed that the formation process can not be so tidy after all.
TrES - 4 and
other oddball planets among the 250 or so discovered in the past 12 years are challenging, even revolutionizing, astronomers» assumptions about how planets and
planetary systems form.
In this two - hour PBS special (a fine companion to The Life of Super-Earths), NOVA combines cutting - edge
planetary science with the thrill of human exploration, putting astronomers and astrobiologists «on location» across the solar
system as they explain the scientific search for life on
other worlds.
This scenario naturally produces a
planetary system just like our own: small, rocky planets with thin atmospheres close to the star, a Jupiter - like gas giant just beyond the snowline, and the
other giants getting progressively smaller at greater distances because they move more slowly through their orbits and take longer to hoover up material.
Black and Mittal, both in UC Berkeley's Department of Earth and
Planetary Science, were drawn to the question of what might happen to Phobos because its fate is expected to be so different from that of most
other moons in our solar
system.
It's too early to tell what
other surprises GPI and SPHERE may find in the outer reaches of
planetary systems.
«If we're right, oceans in the outer solar
system are common, and
other objects of similar size to Pluto there probably also have subsurface oceans,» says Francis Nimmo, a lead author of one of the studies and
planetary scientist at the University of California, Santa Cruz.
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.
One ERS program will stare into the hearts of neighboring nascent star
systems to watch ices, organic molecules and
other planetary building blocks dance around coalescing suns.
Fortunately, the risk of contaminating the Red Planet is extremely slim, says Catharine Conley, NASA's
planetary protection officer, who is charged with ensuring agency projects do not contaminate
other solar
system bodies.
The Pluto - Charon
system is the only
other place in our solar
system where we believe this happened on a
planetary scale.
The findings offer additional insight into the unusual and active geology on Pluto and, perhaps,
other bodies like it on the
planetary outskirts of the solar
system.
JUPITER dominates the
planetary system, weighing in at a mass two and a half times that of all the
other planets put together.
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.
«These findings may have implications for how
planetary systems around
other stars could form and where and how big the planets would be.»
In contrast to the carbon - rich icy material found in
other double star
systems, the
planetary material identified in the SDSS 1557
system has a high metal content, including silicon and magnesium.
Krimigis, an expert in
planetary magnetospheres, had a hand in both missions, as well as in visits to all the
other worlds in the solar
system.