post-main-sequence solar mass lossWe present the results of extensive long-term integrations of systems of planets with orbits initially identical to subsets of the planets within our Solar System, but with the
Unlike many of the other planets in our solar system, Earth only has one moon. Or, at least, that's true most of the time. Sometimes, our planet attracts another satellite or mini-moon but usually just for a short period of time. And, as far as researchers have confirmed, it has ha...
We need to understand them, how they interact with their central stars, and their evolution both to reconstruct the Solar System鈥檚 history, and to account for the observed diversity of exo-planetary systems. Our knowledge of these systems, in terms of their disks, gas content, dust ...
Evaporation or freezing of water-rich fluids with dilute concentrations of dissolved salts can produce brines, as observed in closed basins on Earth1and detected by remote sensing on icy bodies in the outer Solar System2,3. The mineralogical evolution of these brines is well understood in regard ...
Ch 8. The Solar System Ch 9. The Inner Solar System Ch 10. Gaseous Planets in the Solar... Ch 11. Comets, Moons & Asteroids Ch 12. Understanding the Science of the... Ch 13. Types of Stars in the Universe Ch 14. Formation & Evolution of Stars Ch 15. Stellar Death & Remnants ...
in our outer solar system. ISO observing programs plan to address questions regarding how common planetary material is around normal stars and how its amount and location depend on system age. These questions are central to an understanding of the place of the “Vega /βPic” disks in stellar...
They also have a large range of mass, from red dwarfs over 10 times less massive than the Sun to blue giants 100 times more massive than the Sun. For a given star such as the Sun, the brightness can change considerably during its lifetime. While the Sun and planets were forming the ...
searching for intelligent life like our own on planets around other stars, it would be a pretty big waste of time to search around O- or B-type stars. These stars remain stable for such a short time that the development of creatures complicated enough to take astronomy courses is very ...
Almost 5 billion years ago, the Sun formed in a local contraction of a cloud of molecular gas. A rotating disk of gas and dust is believed to have fed material onto the proto-Sun for the first few million years of its life, and to have formed the planets, comets and other Solar Sys...
A star the size of the Sun can expect to live in the Main Sequence for about 10 billion years, and then it will evolve further. It is at this stage in its life that planets will have formed and any life will have existed. The Sun is halfway through its life, middle-aged. However...