earth analog

In the future, technology may be used by humans to artificially produce an Earth analog.

The probability of finding an Earth analog depends mostly on the attributes that are expected to be similar, and these vary greatly.

Planet Hunter Deep search of 65 nearby stars for Earth analogs.

We know about the Old Earth analog."

A 'shallower' search of a larger number of targets could be done if Earth analogs are rarer.

The formation, presence, influence on these characteristics of the Moon (such as tidal forces) may also pose a problem in finding an Earth analog.

On the other hand, new research suggests that Earth analogs may be quite numerous, at least in the Milky Way galaxy.

Some scientific theories speculate that Earth analogs may have existed in our Solar System in the past.

Because the Solar System proved to be devoid of an Earth analog, the search has widened to extrasolar planets.

'Johnny, earlier when you said that the Old Earth analog was complete, I said,"Why, for God's sake?"

Based on Earth analogs, hydrothermal systems on Mars would be highly attractive for their potential for preserving organic and inorganic biosignatures.

Multiverse theory suggests that an Earth analog could exist in another universe or even be another version of the Earth itself in a parallel universe.

Astrobiologists assert that Earth analogs would most likely be found in a stellar habitable zone in which liquid water could exist, providing the conditions for supporting life.

A true Earth analog therefore might need to have formed through similar processes, having possessed an atmosphere, volcanic interactions with the surface, past or present liquid water and lifeforms.

If the Kepler Mission continues for longer, it will be able to detect smaller, and more distant planets as well as a larger number of true Earth analogs.

It's only a matter of time before more Kepler observations lead to smaller planets with longer period orbits, coming closer and closer to the discovery of the first Earth analog.

Another criterion often cited is that an Earth analog must be terrestrial, that is, it should possess a similar surface geology-a planetary surface composed of similar surface materials.

A habitable planet candidate implies a terrestrial planet within the zone, and with conditions roughly comparable to those of the Earth (i.e. an Earth analog) and thus potentially favourable to life.

Another criteria of an Earth Analog is that it should orbit a Solar Analog, that is, a star much like our own sun, similar photometrically or in terms of spectral type.

One strategy for a habitable planet search is to do a 'deeper' search (i.e. to lower mass sensitivity in the habitable zone) of a smaller number of targets if Earth analogs are common.

It was a look-alike for another planet about three hundred light-years away: same K-type primary; mass, size, orbital parameters and axial tilt within a few percent; atmosphere modified very slightly, if at all, to an Earth analog.

The JPL astronomers also noted that there are "50 billion other galaxies", potentially yielding more than one sextillion "Earth analog" planets if all galaxies have similar numbers of planets to the Milky Way.

I don't understand the exact purpose of the Keats Project or the other Old Earth analogs, but I suspect that it is part of a TechnoCore project going back at least seven standard centuries to realize the Ultimate Intelligence."

An Earth analog (also referred to as a Twin Earth, Earth Twin, Second Earth, Alien Earth, Earth 2 or Earth-like planet) is another planet (or world) with environmental conditions similar to those found on the planet Earth.