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As planetary systems evolve, gravitational interactions between planets can fling some of them into eccentric elliptical orbits around the host star. Smaller planets should be more susceptible to ...

There is an as-yet-unseen population of Jupiter-like planets orbiting nearby Sun-like stars, awaiting discovery by future missions like NASA's WFIRST space telescope, according to new models of ...

Numerical simulations showed that the temperature gradient in the disk of gas around a young gas giant planet could play a critical role in the development of a satellite system dominated by a single ...

A surprising analysis of the composition of gas giant exoplanets and their host stars shows that there isn't a strong correlation between their compositions when it comes to elements heavier ...

The surviving core of a gas giant has been discovered orbiting a distant star, offering an unprecedented glimpse into the interior of a ...

Lab-based mimicry allowed an international team of physicists to probe hydrogen under the conditions found in the interiors of giant planets -- where experts believe it gets squeezed until it becomes ...

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) found a young star surrounded by an astonishing mass of gas. The star, called 49 Ceti, is 40 million years old and ...

Liquid metallic hydrogen is not present naturally on Earth and has only been created in a handful of places. Now scientists are researching the properties of liquid metallic hydrogen to understand ...

A new planet has been imaged, and it appears nearly identical to one of the best studied gas-giant planets. But this doppelganger differs in one very important way: Its origin. One object has long ...

Globular clusters, which have been forming over the last billion years, have been found to exist around the giant galaxy at the center of the Perseus ...