Other Worlds Their Nature, Possibilities and Habitability in the Light of the Latest Discoveries

Potential for life is higher on these Earth-sized planets

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Bound in the original blue cloth with the spine and front cover both handsomely gilt-decorated with stars, Saturn with its rings, and two horizontal rules. No owner's name or bookplate. Illustrated with charts, diagrams, and photos. Study of the moon, asteroids and planets of our solar system. Historical background, characteristics, speculation as to atmosphere, availability of water, habitability, irrigation canals on Mars built to move melted water from the polar ice-caps, etc. Very Good condition Edition: Other worlds; their nature, possiblities and habitability in the light of the latest discoveries, by Garrett P.

Antique look with Golden Leaf Printing and embossing with round Spine completely handmade binding extra customization on request like Color Leather, Colored book, special gold leaf printing etc.

Reprinted in with the help of original edition published long back []. As these are old books, we processed each page manually and make them readable but in some cases some pages which are blur or missing or black spots. If it is multi volume set, then it is only single volume. We expect that you will understand our compulsion in these books.

We found this book important for the readers who want to know more about our old treasure in old look so we brought it back to the shelves. Hope you will like it and give your comments and suggestions. Normal Hardbound Edition is also available on request. An artist's rendering shows Earth-sized exoplanets TRAPPIST-1b and 1c in a rare double transit event as they pass in front of their ultracool red dwarf star, which allowed Hubble to take a peek at at their atmospheres.

Out of a new discovery of exoplanets, astronomers found four similar in size to Earth that are orbiting a dwarf star.

Two of them have the potential to support life. The craft depicted in this illustration is the NASA Kepler Space Telescope, which has helped confirm the existence of thousands of exoplanets. This artist's impression shows a view of the triple-star system HD from close to the giant planet orbiting in the system. Located about light-years from Earth, the planet is about 16 million years old, making it also one of the youngest exoplanets discovered to date.

An artistic impression of the planet Keplerb, which is nearly identical to Jupiter in both size and mass. The planet is expected to be roughly similar in appearance. But it is much warmer: Keplerb is in the habitable zone. HDb is a gaseous planet 11 times more massive than Jupiter.

The planet is believed to have formed in the center of its solar system, before being sent flying out to the edges of the region by a violent gravitational event. Keplerb orbits at a distance more than 20 times closer to its star than Mercury is to our own sun.

Daytime temperatures exceed 1, degrees Celsius 2, degrees Fahrenheit , which is hotter than lava flows on Earth. This Jupiter-like planet in the HD system, light-years from Earth, has three suns. The main star is similar in mass to our own Sun.

A cool star

Keplerb is a Uranus-sized transiting exoplanet with the longest known year, as it circles its star once every days. The planet orbits an orange, K-type star that is cooler and dimmer than our Sun and is located about 1, light-years from Earth in the constellation Lyra. Astronomers discovered two planets less than three times the size of Earth orbiting sun-like stars in a crowded stellar cluster approximately 3, light-years from Earth in the constellation Cygnus.

Other Worlds

This artist's conception shows a hypothetical planet with two moons orbiting in the habitable zone of a red dwarf star. The majority of the sun's closest stellar neighbors are red dwarfs. Keplerf was the first validated Earth-sized planet to be found orbiting a distant star in the habitable zone. This zone a range of distance from a star where liquid water might pool on the planet's surface. Keplerc is a super-Earth-size planet similar to Venus. The planet is found in the habitable zone of a star like our sun, approximately 2, light years from Earth in the constellation Cygnus.

The Kepler system formed when the Milky Way was just 2 billion years old. The tightly packed system is home to five planets that range in size, the smallest is comparable to the size of Mercury and the largest to Venus, orbiting their sun in less than 10 days. Both planets orbit a G2-type star of about the same temperature; however, the star hosting Keplerb is 6 billion years old -- 1. Observations were made using the Hubble Space Telescope.

Four separate papers detailing the new findings were published Monday in the journals Nature Astronomy and Astronomy and Astrophysics. The name comes from Trappist monastery-brewed Belgian beer , a favorite of the astronomers who discovered the planets. Inside abbey where Belgian monks brew Trappist beer. The TRAPPIST system is now the most studied planetary system outside of our own and has some of the most important hallmarks for finding life outside our solar system. Although 40 light-years doesn't sound too far, it would take us millions of years to reach this system. But from a research perspective, it's a close opportunity and the best yet to search for life beyond our solar system.

Alien atmosphere

But first, a refresher. Their composition is probably much richer in water than Earth's. These planets form a complex "chain of resonance," which is to say that their orbits are related by simple mathematical relationships. As are most very-low-mass stars, it is pretty active, and its emission of X-rays and UV rays could have a negative impact on the long-term survival of atmospheres around the planets. The system is probably older than our solar system.

Other Worlds by Garrett Putman Serviss

The planets are so close to each other and the star that there are seven of them within a space five times smaller than the distance from Mercury to our sun. This proximity allows researchers to study the planets in depth, gaining insight about planetary systems other than our own.

What is an exoplanet? Standing on the surface of one of the planets, you would receive times less light than you get from our sun, but you would still receive just as much energy to keep you warm, since the star is so close. It would also afford some picturesque views, as the other planets would appear in the sky as big as the moon or even twice as big.

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Like the moon, the researchers believe the planets closest to the star are tidally locked. This means the planets always face one way to the star. One side of the planet is perpetually night, while the other is always day. The new studies shed more light on the star at the center of the planetary system, improve the measurements of the planets' radii and masses, and report the findings of reconnaissance observations of the planets' atmospheres. The research confirms that, as suspected, all seven planets are rocky and not gaseous.

For reference, oceans on Earth account for only. The water could present itself in different ways on these planets, depending on the heat and radiation they receive from the star. This could be due to a large atmosphere, an ice layer or an ocean.

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