Sentences with phrase «with rocky cores»

But in many instances, the simulations show, even planets starting with rocky cores as little as 1.5 Earth's mass may trap and hold atmospheres containing between 100 and 1000 times the amount of hydrogen found in the water in Earth's oceans — thick, dense envelopes exerting pressures so hellish that life on the planets» surfaces might be almost impossible.

Researchers have found a host of Earth - like planets, and are trying to understand what conditions might be like at the surface of a planet with a rocky core and a thick atmosphere.

Give me a bunch of Vestas, and I can make a dry Earth with a rocky core.

«It was previously thought that the oceans in these satellites are in direct contact with the rocky core and a chemical reaction took place between them.

«This planet has the interior structure of a hybrid super - Earth / Neptune, with a rocky core surrounded by a significant amount of water compressed into solid form at high pressures and temperatures.»

Chemical analysis of the plume indicated the presence of organic and nitrogen - bearing molecules, as well as salts and silicates, which strongly suggest ocean water is in contact with a rocky core.

The bottom of the ocean is also thought to be in contact with the rocky core, similar to on Earth, which could provide chemical nutrients to any possible life forms.

Ceres is a partially differentiated body, with a rocky core overlaid by a volatile - rich shell.»

Not exact matches

Unlike in other states where governors were intimately involved with Common Core implementation, Cuomo has largely stayed out of the process, letting state education commissioner John King and the state Board of Regents take the heat from parents and teachers over the rocky rollout.

Physicists have simulated the cores of some large rocky exoplanets by pummeling iron with lasers.

They're like small Neptunes but with huge amounts of liquid water around a rocky core.»

Jupiter is thought to have a rocky core with the mass of 10 Earths that helped it accumulate its gas shroud.

Standard geology texts assume that the metallic core is virtually isolated from the rocky mantle, with only a thin interface called the D» layer between them.

Earth and Mercury are both rocky planets with iron cores, but Mercury's interior differs from Earth's in a way that explains why the planet has such a bizarre magnetic field, UCLA planetary physicists and colleagues report.

PUFFED UP Early in its development, a rocky planet may turn into a synestia (illustrated), a spinning disk of vaporized rock that looks like a jelly - filled doughnut with a small, solid core (gray).

«We had figured out how the Earth works, and Mercury is another terrestrial, rocky planet with an iron core, so we thought it would work the same way.

For instance, a catastrophic impact could have stripped away most of Mercury's rocky mantle, leaving the planet with its relatively huge iron core.

The planetesimals, which eventually merged to form the rocky planets, were more planetlike than previously thought, with cores that must have formed and melted within just a few million years of the formation of the solar system, Weiss says.

The presence of this rock at a site indicates either that material has pushed up through Earth's crust from the mantle (a silicate rocky shell between the crust and the core with an average thickness of 2,886 km and depths ranging from 30 km to almost 3,000 km below the crust) or that a celestial body (a comet, meteor or meteorite) fell there.

Surprising findings from some of the oldest known meteorites suggest that our solar system was once chock - full of miniature planets, complete with metallic cores and rocky crusts.

This violent «stripping» occurs in planets that are made up of a rocky core with a gaseous outer layer.

Lagrange says the finding is consistent with a planet formation model known as core accretion in which the planet starts out as a rocky core that gravitationally acquires more matter from the surrounding swarm of dust and gas.

Combined with its mass of 8.57 Earths, that size suggests the planet has a dense rocky core, surrounded by a 3000 - kilometre - thick envelope of nearly pure water.

They modelled more complex bodies than have been tried before: rather than just a homogeneous ball, they included more realistic objects with a hard, rocky core surrounded by an icy mantle.

Psyche would be a mission to something never examined before up close — a metallic asteroid, the metallic core of a protoplanet where the outer rocky layers (and any atmosphere) had been «stripped away» by a violent impact with another object, according to planetary scientists.

The interior of Venus is probably very similar to that of Earth, with an iron core about 6,000 km (3,700 miles) in diameter radius and a molten rocky mantle comprising most of the planet.

A world with an iron core, rocky mantle and enough water on the surface to create liquid water oceans that could support life.

This means the planet is far denser, indicating it is a rocky planet with an iron core.

Assuming an iron - rich planet with an internal structure like Earth, modelling results for the first discovered super-Earth (GJ 876 d) indicate the existence of a threshold in planetary diameter above which a super-Earth «most certainly» has a high water content (an «ocean planet» or «water world,» where thick layers of water and pressurized ice surround a rocky mantle and core); this threshold was found to be around 24,000 kilometers (or nearly 15,000 miles) in the particular case of GJ 876 d (Valencia et al, 2007).

Colliding at speeds up to 22,000 miles per hour (36,000 kilometers per hour), such a collision may have stripped most of the rocky mantle from the protoplanet that became Mercury with its iron - rich core, while a Mars - size protoplanet struck the early Earth off - center and created a spray of mostly mantle material that later accreted to form the Moon.

There is no doubt that there was a rocky transition with the Common Core and the aligned tests, but instead of joining a productive debate and coming together with solutions, opt - out activists have taken unilateral action.

One thing's for sure: With opposition across the political spectrum for different reasons, the Common Core has rocky days ahead.