Scientists have described possible planetary systems where a gravitational nudge from one planet with just the right orbital configuration could have a devastating impact on the orbit and climate of another, possibly habitable world.
A certain habitable planet may actually exist, despite prior claims. Scientists have found that a planet named GJ 581d, which was first identified in 2009 orbiting the star Gliese 581, isn't a glitch in data.
Most planets have just one or two stars to contend with. Now, though, astronomers have discovered a planet that had four parent stars. Scientists have recently uncovered two exoplanets, one which has three parent stars and another which has four.
Scientists may have gotten a better glimpse of weather on other planets. They've created a new technique that analyzes data from NASA's Kepler space observatory to determine the types of clouds on planets that orbit other stars.
A certain rocky exoplanet could tell researchers how our solar system was formed. Scientists have made some new observations of a small rocky world that may increase our understanding of how planets were first created.
Astronomers have discovered a rare planet with some extreme seasons. Called Kepler-432b, the planet is one of the most dense and massive planets to be discovered thus far, and has temperatures that range from 500 degrees Celsius to a scorching 1,000 degrees.
A team of researchers and engineers have announced plans for a small satellite, named "Twinkle," that will give radical new insights into the chemistry, formation and evolution of planets orbiting stars.
Scientists have calculated that there may be hundreds of billions of Earth-like planets in our galaxy which could support life.
Two phenomena that are known to actually inhibit the habitability of planets may actually help chances for life. Scientists have found that tidal forces and vigorous stellar activity may promote life on certain planets orbiting low-mass stars.
Astronomers have spotted an ancient, sun-like star with orbiting planets in a system that dates back to the dawn of the galaxy. The system is the oldest to be discovered by far with Earth-sized planets, and proves that such planets formed throughout the history of the universe.
Scientists have discovered a star with three Earth-sized planets. Not only that, but one of the planets may just have temperatures that are moderate enough for liquid water, and possibly life, to exist.