January 2016
How to Build Planets
... of emission for both NIR and MIR excesses can be an indication of something different altogether. Artist’s impression of a ‘Hot Jupiter’ Observations with the Spitzer Space Telescope of discs lacking these two excesses indicate that the fledgling...
13 March 2017
Europa Clipper: the official name of NASA's mission to Europa
... that the solar-powered spacecraft will be put into a long, looping orbit around its parent planet Jupiter to perform around 45 flybys of its moon at altitudes ranging from 25 kilometres to 2,700 kilometres (16 miles to 1,700 miles) over...
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...
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...
