Super-Earth 55 Cancri e (artist's impression). It shows a hot partially-molten surface of the planet before and after possible volcanic activity on the day side. Using NASAs Spitzer Space Telescope, the researchers observed thermal emissions coming from the planet, and for the first time found rapidly changing conditions, with temperatures on the hot day side of the planet swinging between 1000 and 2700 degrees Celsius.
Volcanic Activity on Super Earth 55 Cancri e - NASA Spitzer Space Telescope
Exoplanet GJ 504b (artist's depiction). In the constellation Virgo, the planet glows a dark magenta. It's about four times the mass of Jupiter and when discovered in August 2013, was the lowest-mass planet ever directly imaged around a star like the sun. (Image Credit: NASA's Goddard Space Flight Center/S. Wiessinger) Mona Evans, "Virgo the Maiden" http://www.bellaonline.com/articles/art183332.asp
Astronomers Image Lowest-mass Exoplanet Around a Sun-like Star
Like Luke Skywalker's planet "Tatooine" in Star Wars, Kepler-16b orbits a pair of stars. Depicted here as a terrestrial planet, Kepler-16b might also be a gas giant like Saturn. Prospects for life on this unusual world aren't good, as it has a temperature similar to that of dry ice. But the discovery indicates that the movie's iconic double-sunset is anything but science fiction. (Credit: NASA/JPL-Caltech)
Relax on Kepler-16b - Where your shadow always has company
Kepler-186f is the first Earth-size planet discovered in the potentially 'habitable zone' around another star, where liquid water could exist on the planet's surface. Its star is much cooler and redder than our Sun. If plant life exists on such a planet its photosynthesis could have been influenced by the star's red-wavelength photons, giving a color palette very different to the Earthly greens. The discovery was made by Kepler, NASA's planet hunting telescope. (Credit: NASA/JPL-Caltech)
Where the Grass is Always Redder on the Other Side
"Twice as big in volume as the Earth, HD 40307g straddles the line between "Super-Earth" and 'mini-Neptune'. At eight time the Earth's mass, its gravitational pull is much, much stronger." (Credit: NASA/JPL-Caltech) I can't see what the attraction would be of weighing 8 times as much, wouldn't be able to move! And is that someone skydiving? Bad idea.
Kepler mission discovered 715 new planets. 2014-02-26. The artist concept depicts multiple-transiting planet systems, which are stars with more than one planet. The planets eclipse or transit their host star from the vantage point of the observer. This angle is called edge-on. (Image Credit: NASA)
NASA's Kepler Discovers First Earth-Size Planet In The 'Habitable Zone' of Another Star. This artist's concept depicts Kepler-186f. (Image Credit: NASA Ames/SETI Institute /JPL-Caltech) Mona Evans, "Searching for Extrasolar Planets" http://www.bellaonline.com/articles/art66984.asp
Solar System compared to Kepler-47, a double-star system containing two planets, one orbiting in the habitable zone - where liquid water might exist on the surface of a planet. One star is similar to the sun in size, but not as bright. The second one is tiny and less than 1% as bright as the Sun. This means the system's habitable zone is closer in. One year on Kepler-47c is 303 days, but it's not a world hospitable for life. It seems to be similar to Neptune. (Credit: NASA/JPL-Caltech/T…
▶ Kepler's New Universe. "Kepler has opened up a new universe. Only about 20 years ago, we didn't know if there were any other planets around any other stars besides our own, now we know we live in a galaxy that contains more planets than stars. Every star in our galaxy has on average 1.6 planets in orbit around it." This video explains how the Kepler mission works.