... are key to understanding what type of world these far-off planets are, as it indicates whether they are gas giants, smaller rocky worlds or perhaps harbouring an ocean for example. “By measuring the radius and by knowing the mass...
... water ice, Jupiter’s moon Io has hundreds of volcanoes created from its gravitational dance with the huge gas giant, but only one planet has hot lava pouring out from its deep interior; Earth. Now...
...’s south polar region were first spotted in 2005 when NASA’s Cassini spacecraft made its tour of the gas giants and some of their moons. Sights that were last seen in situ by the Voyager craft in the 1980s...
... on emissions from magnetic fields. Even though terrestrial planets are more commonly found around M dwarfs than gas giants, they are expected to have much weaker magnetic fields due to their relative size and so are harder...
... a main-sequence star was discovered (51 Pegasi b). Since then thousands of exoplanets, from small rocky worlds to huge gas giants have been found using many different telescopes, hundred of which are in multi-planetary systems, however only...
... dioxide formed beyond Jupiter’s orbit before being flung closer to the sun through interactions with the gas giant. The discovery of water inclusions within a carbonaceous chondrite meteorite from the early history of the solar system...