The possible surface of TRAPPIST-1f, one of seven newly discovered planets in the TRAPPIST-1 system that scienmore
An artist's concept depicts select planetary discoveries made so far by NASA's Kepler space telescope. Courmore
An imagined view of the three planets orbiting an ultracool dwarf star just 40 light-years from Earth discovermore
A view of the surface of the planet Proxima orbiting the red dwarf star Proxima Centauri, the closest star to more
An illustration compares Earth to a planet beyond the solar system that is a close match to Earth, called Keplmore
The planet Kepler-186f, the first validated Earth-size planet to orbit a distant star in the habitable zone, more
A planet-like object dubbed Sedna, a small icy body far beyond Pluto and the Kuiper Belt, a discovery that camore
Dwarf planet Ceres is seen in the main asteroid belt between the orbits of Mars and Jupiter. Ceres, one of themore
An artist's impression shows a sunset seen from the super-Earth Gliese 667 Cc. Astronomers have estimated themore
A view of a Saturn-sized planet orbiting 79 Ceti. REUTERS/Stringer
An artist's depiction of Kepler-62e. The super Earth-size planet is in the habitable zone of a star smaller anmore
Kepler-22b, the most Earth-like planet ever discovered, is circling a star 600 light years away. It is the smamore
A newly discovered planet, designated by the unglamorous identifier of OGLE-2005-BLG-390Lb, orbits a red star more
An artist's impression shows the planet orbiting the star Alpha Centauri B, a member of the triple star systemmore
The Jupiter-size extrasolar planet, HD 189733b, being eclipsed by its parent star. The planet is a 'hot Jupitemore
An artist's conception of the tiny new planet Kepler-37b, which is slightly larger than Earth's moon and orbitmore
Kepler-11, a sun-like star around which six planets orbit. At times, two or more planets pass in front of the more
The first visible-light snapshot of a planet circling another star. Estimated to be no more than three times Jmore
A baffling planet, known as HAT-P-1, that is much larger than theory predicts. The planet has a radius about 1more
A rich starry sky fills the view from an ancient gas-giant planet in the core of the globular star cluster M4.more
The circumbinary planet Kepler-16b - the first planet known to definitively orbit two stars. The cold planet, more
Planet 2003UB313, the most distant object ever detected orbiting the sun, at the lonely outer fringes of our smore
A Jupiter-sized planet passing in front of its parent star. Such events are called transits. When the planet tmore
The planet Kepler-16b with its two stars. The cold planet, with its gaseous surface, is not thought to be habimore
A unique type of exoplanet discovered with the Hubble Space Telescope. The planet is so close it to its star tmore
A fledgling solar system containing deep within it enough water vapor to fill all the oceans on Earth five timmore
Islamic State tunnels discovered by Iraqi forces.
Security footage of the events leading up to the death of the estranged half-brother of North Korean leader Kim Jong Un at Kuala Lumpur International Airport.
This week marks the 75th anniversary of FDR signing executive order 9066, authorizing the internment of Japanese-Americans during World War Two.
Two Islamic State militants captured in Kirkuk, Iraq, one of whom claimed he raped hundreds of women and killed hundreds more, now spend their days in tiny jail...