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Planet

Astronomers have disproved the existence of two exoplanets thought to orbit Gliese 581 in ...

Those packing their bags for a trip to the two potentially habitable exoplanets previously claimed to be orbiting the red dwarf star Gliese 581 had better rethink their travel plans. Astronomers at Pennsylvania State University say the planets, Gliese 581 d and Gliese 581 g, don't actually exist.  Read More

According to a survey conducted by astronomers at Cornell University, the Milky Way may be...

A survey conducted by astronomers at Cornell University has taken into account the characteristics of 637 known exoplanets and elaborated a Biological Complexity Index (BCI) to assess the relative probability of finding complex life on them. Their data supports the view that as many as one hundred million planets scattered around the Milky Way, and perhaps more, could support life beyond the microbial stage.  Read More

Artist's Impression of Cassini passing near Titan (Image: NASA/JPL-Caltech)

Data collected from observations recorded by NASA's Cassini mission has been used to propose ways to better understand the atmospheres of exoplanets. By studying the light of sunsets on Saturn’s satellite, Titan, scientists have shown how spectra are subtly altered when passing through a hazy atmosphere, thereby giving a greater insight into interpreting the spectral readings of the atmosphere of these distant worlds.  Read More

An artist's impression of Chariklo's rings, from the planet's surface (Image: ESO/L. Calça...

With the use of seven telescopes spread across South America, observers have confirmed the unlikely discovery of a double ring surrounding the minor planet Chariklo, which holds orbit between Saturn and Uranus. Previously rings have only been found around giant planets, the most dramatic of which, Saturn, shines easily visible to the naked eye in the night sky.  Read More

Discovery images of 2012 VP113 comprised of three shots, with the dwarf planet displayed i...

Scientists from the Carnegie Institution for Science and the Gemini Observatory have reported the existence of a new member of our solar system. The distant dwarf planet, dubbed 2012 VP113, is believed to be one of thousands of distant objects that make up the hypothesized "inner Oort cloud."  Read More

Planet X is a hypothetical star or planet, theorized to be responsible for Earth's mass ex...

A study of data captured by NASA's Wide-Field Infrared Survey Explorer (WISE) satellite has disproved the existence of the hypothesized large celestial body, dubbed "Planet X." The planet or companion star was, some believed, responsible for the periodic mass extinctions that have taken place in Earth's past.  Read More

Kepler 78b has a year 8.5 hours long and orbits its sun at a distance only three times the...

Sometimes it seems as if the year just flies by. On planet Kepler 78b, it does exactly that. According to a team of scientists at MIT, the extrasolar world is so close to its sun that its year is only 8.5 hours long. That means that not only could a person go through almost three birthdays in one day, but that the surface temperature would be like taking up residence in a blast furnace.  Read More

A recent analysis of the data gathered from the Kepler telescope has revealed that Earth-s...

The latest analysis of data coming from NASA's Kepler telescope has revealed that nearly all the Sun-like stars in our galaxy appear to have planets orbiting them, and that at least 17 percent of them – about one in six – are hosting a planet the size of our own in close orbit. Because the Milky Way is estimated to contain some 100 billion stars, this means that our galaxy alone could have at least 17 billion Earth-sized planets, some of which may harbor the conditions for life.  Read More

Artist’s impression of CFBDSIR2149, the rogue planet wandering through space roughly 100 l...

While the Kepler spacecraft’s mission to discover Earth-like planets orbiting other stars continues to produce results, astronomers have found what is likely to be a planet that is not gravitationally bound to any star. The rogue planet, called CFBDSIR2149, is around 100 light years from our solar system, making it the closest free-floating planetary mass yet discovered. Its relative proximity, coupled with the lack of a bright star in its vicinity, has allowed researchers to study its atmosphere in great detail, which should help provide a better understanding of exoplanets that do orbit stars.  Read More

An artistic conception of  the triple star system where GJ667Cc resides (Image: Carnegie I...

An international team of scientists led by Professors Guillem Anglada-Escudé and Paul Butler from the Carnegie Institution for Science in the U.S. has discovered a potentially habitable Super-Earth that's "just" 22 light years away. The new Super-Earth has a mass that is 4.5 times larger than that of our planet and it revolves around its parent star in 28 days - a star that is significantly smaller than ours. This remarkable new discovery suggests that habitable planets could exist in a wider variety of environments than previously believed.  Read More

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