Models of terrestrial planet formation of low - mass stars find that
if planets form only from local material, they don't get much bigger than 1 Earth mass.
If planets form around brown dwarfs, then we have to add them to our list of possible abodes for life.
They also found that carbon - rich planets can form in disks with a carbon - oxygen ratio as low as 0.65
if those planets form close to their host star.
Not exact matches
«
If Jupiter or Neptune had migrated inward after the terrestrial
planets formed, it seems unlikely that our Solar System would have an Earth, or any of the terrestrial
planets at all,» he told Phys.org.
«Understanding how
planets form is important
if we're to understand the formation of the Earth, and ultimately, how we got here,» said Erik Petigura, co-author of the paper about the Neptune - sized
planet, to the Guardian.
If you were naturally blessed with the ability to have perfect
form and understand Pure Barre completely your first class, I might think you were from another
planet.
If it varied from this incredibly sensitive balance, no galaxies, stars or
planets would be able to
form.
If these aliens came
form a
planet of similar size, chemical composition, and distance from its star it stands to reason that they could be very similar to us in many ways up to and including our penchant for religions.
What
if the meteorites
formed after the
planets?
However,
if you look at the complexity of the life
forms, and our
planet perfectly designed to sustain human life.
If they had gone into explanations of billions of years, particles expanding and gathering together to
form stars and
planets, and all the other wonderful discoveries we are now making, they would have killed the person telling the story.
If matter didn't exist in the
form of
planets and stars and the, because of gravity (or whatever) suddenly the
planets and stars do exist, where did gravity come from?
If its the
planet earth, as someone else mentioned science has a pretty good idea of how this
planet formed and how long its been around.
As another example,
if the relationship between the strengths of the gravitational force and the electromagnetic force were not close to what it is, then the cosmos would not harbor any stars that explode and spew out life - supporting chemical elements into space or any other stars that
form planets.
The human experiment would have failed, but God could continue on his quest for more intensive
forms of existence,
if not on this
planet, then elsewhere in the universe.
In global consciousness we know that,
if we go far enough back in time, we share a common origin not only with people from very different cultural and religious backgrounds, but also with all
forms of life on the
planet.
If it wasn't you wouldn't be here to ask such a question and life would have
formed on a suitable
planet in another solar system.
If there are life
forms elsewhere in the universe, perhaps in another galaxy or perhaps on other
planets would they be Muslim, Jews, Christian, Buddhist or something else?
If the light shifts towards red wavelengths it is moving farther away, while blue shift light is moving closer and thus we can see that the three
planet -
forming discs are almost «tumbling around» and are skewed relative to each other,» explains Christian Brinch.
But
if winds were to carry salty soil particles to the ice cap, they might gradually sink to
form a briny bed, kept liquid by the
planet's warmth.
«That's been called into question over the past decade, and many new ideas have been offered, but the bottom line is that we need to identify a number of newly
formed planets around young stars
if we hope to fully understand
planet formation.»
If a
planet consists of a lot of gas, the atmospheric pressure on the surface may be so high that water is not able to keep its liquid
form.
He doesn't want to be dogmatic, because the Bible doesn't explicitly say there aren't extraterrestrials... but it does say we supposedly have dominion over all the plants and animals... Genesis 1:26 would have to be dealt with, of course,
if there were aliens... though perhaps not
if the life -
form were merely a
form of moss or lichen... and there's no scriptural barrier to God's having designed a
planet populated entirely by spatulas...
Frank and Sullivan calculate that even
if the chances of
forming such a «high tech» species are 1 in a 1,000 trillion, there will still have been 1,000 occurrences of a history like own on
planets across the «local» region of the Cosmos.
If the
planet is covered by an immense amount of water, the pressure at the bottom of the ocean will increase to such an extent that water occurs in the
form of «Ice VII,» which does not exist on Earth.
If binary asteroids can
form single craters, then Earth is more likely to be hit by a pair of objects in future than our
planet's crater record would suggest.
And
if these «new»
forms of life exist on Earth, they could exist on other
planets too.
Three of these
planets are confirmed to be super-Earths —
planets more massive than Earth, but less massive than
planets like Uranus or Neptune — that are within their star's habitable zone, a thin shell around a star in which water may be present in liquid
form if conditions are right.
If you take a
planet that has water and organic material, which you can't really avoid having in some sense, and you let that thing evolve for a couple of billion years, how are you going to stop it from
forming life?
There's an intriguing twist, too: Jayawardhana and others have shown that young brown dwarfs generally do not have massive protoplanetary disks of gas and dust, which means that
if the new object is indeed a
planet, it may not have
formed the same way
planets in our solar system did.
If life exists on Mars, it is most likely to be in the
form of bacteria buried deep in the
planet's permafrost or lichens growing within rocks, say scientists from NASA.
The prevailing view has been that
planets mostly accumulate water only long after they
form:
If a young
planet with water trapped in its rocks collides with another heavenly body or even large debris — common occurrences in the cosmos — the impact would, presumably, drive accumulated water into space, leaving many
planets bone - dry.
If confirmed, the finding could give scientists an unprecedented look at pristine samples of the original material that bonded to
form comets, asteroids and
planets nearly 4.6 billion years ago.
The cloud pattern that kept the climate cool only
formed if the
planet was rotating slugglishly.
The only thing that might interrupt the process is
if a gaseous
planet had already
formed and crossed the belt's path, sweeping up the rocky chunks before they could clump together.
One controversial theory posits that giant
planets might not need rocky cores
if they
form directly from unstable whorls of gas in the nebula around a young star.
If the crystal could
form so early in Earth's history, the
planet's surface must have cooled and hardened considerably faster than researchers had suspected.
The team's simulations show, perhaps not surprisingly, that potentially habitable
planets are more likely to remain so
if they
form in areas far from dense conglomerations of stars, where more supernova explosions occur.
So far there are few
if any wholly satisfactory explanations as to how such an extremely elongated solid object could naturally
form, let alone endure the forces of a natural high - speed ejection from a star system — a process thought to involve a wrenching encounter with a giant
planet.
«
If forming tightly packed systems of inner
planets is easy, there's no reason it shouldn't happen in our solar system,» says Kathryn Volk at the University of British Columbia, Canada.
«
If we can figure out the detailed properties of the place where our sun and its planets formed,» he says, «we might be able to find out if those conditions had anything to do with the fact that life exists here on Earth.&raqu
If we can figure out the detailed properties of the place where our sun and its
planets formed,» he says, «we might be able to find out
if those conditions had anything to do with the fact that life exists here on Earth.&raqu
if those conditions had anything to do with the fact that life exists here on Earth.»
Instead another race will begin: to characterize the
planet and its atmosphere and to determine
if the world is truly habitable or, tantalizingly,
if it is already inhabited by some extraterrestrial life -
form.
If the French astronomers are right, at least one
planet may already have been
formed — although the researchers themselves warn that there are other possible explanations.
«
If so, it's likely that
planets will eventually
form from this material, as is the case for young stars in the galactic disk.»
If so, it may be identical to the rocks that came together to
form the Earth, which means that studying its composition would tell us what the chemistry of our
planet was like in the earliest stages of its existence.
Meanwhile, the iron oxide would settle
planet's depths and
form reservoirs of oxygen there, particularly
if one of these patches of iron oxide moved upward along the pressure gradient to the middle part of the mantle and separated into iron and O2.
Tajeddine explains that
if Saturn moons actually
formed 4.5 billion years ago, their current distances from the home
planet should be greater.
So
if habitable
planets can
form in globular clusters and survive for billions of years, what are the consequences for life should it evolve?
If binary asteroids can
form single craters, then Earth is more likely to hit by a binary impact in future than our
planet's crater record would suggest.
If, as evolutionists teach, our sun and
planets formed from a large spinning dust and gas cloud, its spin rate today should be a hundred times faster.