The Earth is teeming with life, which occupies a diverse array of environments; other bodies in our Solar System offer fewer, if any, niches that are habitable by life as we know it. Nonetheless, astronomical s
For decades, it has been thought that the key factor in determining whether a planet can support life was its distance from its sun. In our solar system, for instance, Venus is too close to the sun and Mars is too far, but Earth is just right. That distance is what scientists refer ...
With the exception of Pluto, planets in our solar system are classified as either terrestrial (Earth-like) or Jovian (Jupiter-like) planets. Terrestrial planets include Mercury, Venus, Earth, and Mars. These planets are relatively small in size and in mass. What is the hottest planet? Planeta...
The controversial exoplanet Gliese 581g is the best candidate to host life beyond our own solar system, according to a new ranking of potentially habitable alien worlds.
Alien life could survive on Earth-like planets circling dead stars, study suggests Astronomers are exploring whether there is a Galactic Habitable Zone (GHZ) in our Galaxy – a region of the Milky Way that is conducive to formingplanetary systems with habitable worlds. The Galactic Habitable Zone...
根据文章第一段Scientists have found a potentially habitable (可居住的) planet and its star outside our Solar System are more similar to the Earth and our Sun than any other known planet-star pair.可知,科学家发现,一个潜在可居住的行星及其在我们太阳系之外的恒星比其他任何已知的行星恒星都更类似...
BEIJING, May 18 (Xinhua) -- Chinese scientists have proposed a space project to survey the sky through a space-borne telescope to hunt for habitable Earth-like planets outside our solar system about 32 light-years from Earth. If the project, named Closeby Habitable Exoplanet Survey (CHES),...
In our solar system, planets are either small and rocky (like Earth) or large and gaseous (likeNeptune). But around other stars, astronomers have foundplanets that fall in between– worlds slightly larger than Earth but smaller tha...
I f its existenc e is conf irmed by other telescopes, th e planet would joi n a group o f about 4,000 known planets outsi d e our Solar System."It's th e combination o f its siz e less- than- doubl e that o f th e Earth and its solar-type host star that makes it so...
Assuming (somewhat arbitrarily) an “ecosphere” of our Solar System to lie between 0.725 and 1.24 AU, he concluded that all potentially habitable planets orbiting stars less than 72% the mass of the Sun would rotate synchronously and that the inner edge of the ecosphere could be affected up ...