Sentences with phrase «young planets»

The discovery gives astronomers a chance to find some of the closest young planets that may exist.

Theoretical models suggest that such turbulence might jostle the orbits of young planets coalescing within the disks.

According to astrobiologists Aditya Chopra and Charley Lineweaver of the Australian National University, conditions on young planets are so volatile that if life doesn't evolve fast enough to stabilize the environment, it will quickly become extinct.

Although the discovery doesn't prove that complex organic structures originated in space, it does present strong evidence that the basic ingredients for living organisms exist elsewhere in the galaxy — and that they could be seeding many young planets with life's building blocks.

It is the first planet detected by the Gemini Planet Imager, or GPI, which was designed to discover and analyze faint, young planets orbiting bright, nearby stars.

Johansen is also heartened by a recent discovery from ALMA, a submillimeter array of telescopes in Chile, of young planets sweeping clear paths through millimeter - sized dust grains in a protoplanetary disk no more than a million years old.

Both ways involve shuffling young planets to and fro as they grew.

New images from the Hubble Space Telescope, released here today at a meeting of the American Astronomical Society, reveal a bright ring of dust around one star and a dark gap within a broad disk around another — features that may offer the strongest clues yet to the properties of large young planets there.

They are ideally suited for exploring young planets» formation environment, interactions with the disk, and orbital migration, in order to understand the origins of the close - in exoplanets.

It surely sounds like the LHB was an awful time for the beleaguered young planet — but perhaps the pelting was a good thing after all, say researchers.

I am a Norwegian / British astronomer who works on a variety of astrophysical topics mainly focused on exoplanet atmospheres, radial velocity followup and more recently understanding the formation environments of young planets.

While NASA's Kepler space observatory has discovered thousands of planets, it does so indirectly by detecting a loss of starlight as a planet passes in front of its star, the Gemini Planet Imager was designed specifically for discovering and analyzing faint, young planets orbiting bright stars.

The evidence suggests that they are observing hot gas that surrounds an orbiting young planet.

«This result is unique because it demonstrates that a giant planet can form so rapidly that the remnant gas and dust from which the young star formed, surrounding the system in a Frisbee - like disk, is still present,» said Lisa Prato of Lowell Observatory, co-leader of the young planet survey and a co-author on the paper.

Volcanic eruptions then began pumping steam and still more gas out of the young planet's interior.

The researchers are devising a model of a wet, hot atmosphere on a young planet.

One or more large, young planets — possibly the size of Neptune or Jupiter — must dictate the shape of the dust, according to simulations.

Some 4.4 billion years ago, for example, a Mars - size planetoid seems to have struck our young planet, throwing out enough debris to create our moon.

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.

Primordial helium - 3 leaked away from the surface of the young planet but was retained in the lower mantle.

The moon, for instance, is believed to have formed from debris stirred up by a Mars - size object careening into our young planet.

Asteroids were considered too small to have created the high temperatures and pressures needed to melt rock, and only extensive melting could allow iron to sink to the center of a young planet and light, crustal minerals to float to the top.

We know that comets bombarded Earth after its formation, and they brought a lot of water and more complex stuff to the young planet.

The dusty, rocky, gaseous lump, circling a star 520 light - years from Earth, is the youngest planet - in - the - making ever found.

Saladino and Di Mauro suggested formamide would have concentrated in warm lagoons on our young planet — particularly because it has a higher boiling point than water, so would concentrate as water evaporated.

Earth's moon probably formed when a large body collided with the young planet and sent hot mantle material flying into space.

Life on a Young Planet The First Three Billion Years of Evolution on Earth.

«Over the next few years, I'm optimistic that GPI will reveal many more debris discs and young planets.

Newborn planet may be younger than Christianity Researchers have spotted the youngest planet to date — an embryonic «protoplanet» still embedded in its birthing material.

Portrait of a young planet The Jack Hills zircons show that a magnetic field existed as early as 4 billion years ago, fluctuating in strength from a value similar to today's — around 25 microteslas — to about 12 % of that.

«If phosphorus is sourced from supernovae, and then travels across space in meteoritic rocks, I'm wondering if a young planet could find itself lacking in reactive phosphorus because of where it was born?

Astronomers say they have found evidence of one of the youngest planets ever observed, smack in the process of being ripped apart by its juvenile star, Gizmodo reports.

The young planet was blitzed by meteorites until 4 billion years ago, so it is unlikely life started before then.

«Almost everything of any biological importance happened back in the Archean,» says Andrew Knoll of Harvard University, author of the upcoming book Life on a Young Planet.

In fact, it's one of the youngest planets ever discovered.

Early in the formation of our solar system (before 3.9 billion years ago) there was lots of large debris striking the surfaces of the young planets and moons; these older impact basins are larger than the more recent craters.

He pointed out that there are many close - orbiting planets around middle - aged stars that are in stable orbits, but his team doesn't know how quickly this young planet is going to lose its mass and «whether it will lose too much to survive.»

The young planet would have had enough water to cover the entire surface in a liquid layer about 450 feet (137 meters) deep.

young planets» formation environment, interactions with the disk, and orbital migration, in order to understand the origins of the close - in exoplanets.

Researchers believe this young planet may resemble an early version of our own home world.

This is the first such detection of the compound in a young planet - forming disc.

Today, it is difficult to determine the details of how this «impact epoch» affected the young planets.

This might mean that it has a hot outer atmosphere heated by bubbling convection cells on the young planet — sort of a Jupiter on steroids.

Schematic view of a transitional disc around a young star This schematic diagram shows how the dust (brown) and gas (blue) is distributed around the star, and how a young planet is clearing the central gap.

The smaller hole in the inner gas is a telltale sign of the presence of a young planet clearing the disc.