Results tagged “extrasolar planet”

Using ESA's Herschel space observatory, astronomers have discovered vast comet belts surrounding two nearby planetary systems known to host only Earth-to-Neptune-mass worlds. The comet reservoirs could have delivered life-giving oceans to the innermost planets.

Super-Jupiter Circles a Massive Star

Astrophysicists at the University of Toronto and other institutions across the United States, Europe and Asia have discovered a 'super-Jupiter' around the massive star Kappa Andromedae

Two newly submitted studies verify 41 new transiting planets in 20 star systems. These results may increase the number of Kepler's confirmed planets by more than 50 percent: to 116 planets hosted in 67 systems, over half of which contain more than one planet. The papers are currently under scientific peer-review.

A Planet's Destruction by Its Star

The first evidence of a planet's destruction by its aging star indicates that the missing planet was devoured as the star began expanding into a "red giant" -- the stellar equivalent of advanced age.

Changes in an Exoplanet Atmosphere

An international team of astronomers using data from NASA's Hubble Space Telescope made an unparalleled observation, detecting significant changes in the atmosphere of a planet located beyond our solar system.

Sifting Starlight for New Worlds

An advanced telescope imaging system that started taking data in June 2012 is the first of its kind capable of spotting planets orbiting suns outside of our solar system.

Though the KELT North telescope in southern Arizona carries a lens no more powerful than a high-end digital camera, it's just revealed the existence of two very unusual faraway planets.

An Evaporating Planet?

Astronomers may have detected evidence of a possible planet disintegrating under the searing heat of its host star located 1,500 light-years from Earth. Similar to a debris-trailing comet, the super Mercury-size planet candidate is theorized to fashion a dusty tail. But the tail won't last for long. Scientists calculate that, at the current rate of evaporation, the dusty world could be completely vaporized within 200 million years.

University of Warwick astrophysicists have pinpointed four white dwarf stars surrounded by dust from shattered planetary bodies which once bore striking similarities to the composition of the Earth.

Kicking Stars Out of the Galaxy

In fact, the primary mechanism that astronomers have come up with that can give a star the two-million-plus mile-per-hour kick it takes requires a close encounter with the supermassive black hole at the galaxy's core.

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