11 December 2019
Water abundance lower than expected on exoplanets
...- from 'mini-Neptunes' of nearly 10 Earth masses to 'super-Jupiters' of over 600 Earth masses - and temperature, from nearly 20 ... in H2O abundances, from mini-Neptunes to hot Jupiters, is significantly lower when compared with the metal abundances...
11 March 2020
Ultra-hot exoplanet literally rains iron say astronomers
... with an array of robotic telescopes on La Palma in the Canary Islands. This puffed-up planet is unflatteringly referred to as a bloated-hot Jupiter, because it is nearly twice the size of our own gas giant and has a radius 20 times bigger than...
14 April 2023
Europe’s JUICE begins its long journey to Jupiter
... the secrets of the ocean worlds around giant planet Jupiter. Following launch and separation from the rocket, ESA’s...to answer humankind’s biggest questions.” There's good evidence that Jupiter’s icy worlds - Callisto, Europa and Ganymede - hold ...
13 January 2020
New study shows a split Solar System that kickstarted growth of Jupiter
... pebbles and dust particles generally pile up and it either formed in situ around 5 astronomical units (au) near to where Jupiter is, but before the planet formed, or migrated in towards the protosun, ending up at this location. This ring of high...
23 May 2018
First permanent extrasolar asteroid found near Jupiter
... when it was found that 2015 BZ509 shares an orbit with Jupiter and travels around the Sun at the same speed as the ... formed in a neighbouring planetary system before being captured by Jupiter. Being captured in this way might seem a little dubious...
10 April 2017
Super-Jupiter mass planet found in the galactic bulge
Using the Keck telescope in Hawaii, astronomers have found a super-Jupiter mass planet orbiting a star that is only a third the size of our Sun and is likely located in the ...
