Sentences with phrase «larger planetary bodies»

«This is surprising since HL Tau is no more than a million years old and such young stars are not expected to have large planetary bodies capable of producing the structures we see in this image.»

Not quite round, Vesta's diameter is roughly 330 miles (530 kilometers) across, making it the second largest planetary body in the Main Asteroid Belt after Ceres.

Not exact matches

This clustering of orbital parameters of the most distant KBOs suggested a large, planetary size body shepherding their orbits.

But planetary astronomer Mike Brown and others infer that larger, planet - size bodies could have also been exiled to the Oort cloud; this is the basis for our Planet Y. — The editors

These «debris disks» are constantly fed by collisions among rocky bodies — the larger of which can survive and grow by continued accretion — because the tiny dust grains quickly fall onto the central star or get blown out of the planetary system.

«For the first time, we have used a geophysical method to determine the internal structure of Enceladus, and the data suggest that indeed there is a large, possibly regional ocean about 50 kilometers below the surface of the south pole,» says David Stevenson, the Marvin L. Goldberger Professor of Planetary Science at Caltech and an expert in studies of the interior of planetarPlanetary Science at Caltech and an expert in studies of the interior of planetaryplanetary bodies.

That level of fascination made sense in the days before telescopes could observe details in planetary atmospheres, before space probes had explored Mars and bulldozed into a comet, and before we understood the history of asteroid and comet collisions, linking celestial bodies large and small.

They aim to unite research interests to shed light on how life began and developed on earth, other planetary bodies, and the cosmos at large.

The asteroid Vesta is the smallest known planetary body that has experienced large - scale igneous differentiation.

The orbits of exocomets on Beta Pictoris could also help scientists trace the presence and migration of larger, undetected bodies such as gas giant planets in the planetary system, says Russel White, an astronomer at Georgia State University in Atlanta who was not involved in the study.

Dynamicists simulating the solar system's early days are finding that a violent reshuffling of bodies large and small may explain many of today's planetary mysteries.

Although dynamos are thought to require large planetary cores, it's possible that the molten cores of these small bodies may have churned vigorously enough to generate magnetic fields, he says.

Another planetary body, Saturn's largest moon Titan, also routinely comes up in discussions of extraterrestrial biology.

One holds that the impact occurred early in Earth's history; another posits that two later collisions in sequence were responsible'or else a planetary body much larger than Mars must have been involved.

Now researchers claim that weirdly wobbling objects in the Kuiper Belt indicate the presence of yet another so - far - undiscovered planetary body at least as large as Mars.

Planetary body 2014 UZ224, also known as DeeDee (short for «distant dwarf»), has been getting a lot of attention from a team of scientists who've observed it using the Atacama Large Millimeter / submillimeter Array (ALMA) in Chile.

Despite their relatively youth, many A-type stars are already old enough that most of the dust found around these relatively short - lived are not a remnant of the star formation process but are instead generated through collisions of larger proto - planetary bodies.

Both objects formed among the rocky and icy protoplanets beyond the Solar System's «ice line» now located around 2.7 AUs, but the early development of Jupiter apparently prevented such large protoplanets between the gas giant and planet Mars from agglomerating into even bigger planetary bodies, by sweeping many into pulverizing collisions as well as slinging them into the Sun or Oort Cloud, or even beyond Sol's gravitational reach altogether.