Sentences with phrase «planetary systems exist»

The observed planet population carries an important message of how planets form and what types of planetary systems exist for future scientific exploration.

Not exact matches

Asserting that in our time the whole planetary system must be taken into account in planning for a humanly desirable future, he argues that the prime end must be to redirect the use of human and technological resources to overcoming the gap between the affluent nations and that much larger portion of mankind which still exists in hunger, poverty, disease, and misery.

It is likely that planetary rings also exist beyond the Solar System.

«Although we were initially quite skeptical that this planet could exist, as we continued to investigate its orbit and what it would mean for the outer solar system, we become increasingly convinced that it is out there,» says Batygin, an assistant professor of planetary science.

Most of the attention in exoplanet research has so far focused on the inner parts of planetary systems, roughly within a distance equivalent to the orbit of Jupiter, for the simple reason that that's all existing detection methods can see.

Drake multiplied the number of sunlike stars in our galaxy that form each year by a handful of variables: the fraction of those stars that have planets; the number of planets per planetary system where life could exist; the fraction of habitable planets where life actually arises; the fraction of those where intelligence emerges; the fraction of intelligent species that develop interstellar communication; and finally, the average length of time that those communicating civilizations survive.

Just one month before Voyager's arrival, a research team had published the first serious model laying out how a liquid ocean could exist within a planetary body in the chilly outskirts of the solar system.

For astronomers, attempting to understand the life cycles of planetary systems using existing examples is like trying to learn how people grow from babies to children to teenagers, by only studying adults.

«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.

The planetary bodies such as these asteroids that fall into and pollute this dying star — which, in its heyday, was three times heavier than our sun — also reveal that giant exoplanets probably still exist in this remote and withering system.

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.

Here, we report observations for the four planets within or near the system's habitable zone, the circumstellar region where liquid water could exist on a planetary surface12, 13,14.

An analogous relationship between planetary mass and composition exists within the solar system.

Little is known about the planetary systems around single white dwarfs although there is strong evidence that they do exist.

We have good scientific knowledge that our planetary home exists in space - time, is finite, has frangible ecological systems and possesses scarce resources, many of which are being dissipated by you and me, so that our children and coming generations will likely be deprived of them.