Hubble Finds a Massive ExoPlanet 9 Times the Size of Jupiter @TheCosmosNews

#thecosmosnews Hubble Finds a Planet Forming in an Unconventional Way
NASA's Hubble Space Telescope has directly photographed evidence of a Jupiter-like protoplanet forming through what researchers describe as an "intense and violent process." This discovery supports a long-debated theory for how planets like Jupiter form, called "disk instability."
The new world under construction is embedded in a protoplanetary disk of dust and gas with distinct spiral structure swirling around surrounding a young star that’s estimated to be around 2 million years old. That's about the age of our solar system when planet formation was underway. (The solar system's age is currently 4.6 billion years.)

"Nature is clever; it can produce planets in a range of different ways," said Thayne Currie of the Subaru Telescope and Eureka Scientific, lead researcher on the study.

All planets are made from material that originated in a circumstellar disk. The dominant theory for jovian planet formation is called "core accretion," a bottom-up approach where planets embedded in the disk grow from small objects – with sizes ranging from dust grains to boulders – colliding and sticking together as they orbit a star. This core then slowly accumulates gas from the disk. In contrast, the disk instability approach is a top-down model where as a massive disk around a star cools, gravity causes the disk to rapidly break up into one or more planet-mass fragments.

The newly forming planet, called AB Aurigae b, is probably about nine times more massive than Jupiter and orbits its host star at a whopping distance of 8.6 billion miles – over two times farther than Pluto is from our Sun. At that distance it would take a very long time, if ever, for a Jupiter-sized planet to form by core accretion. This leads researchers to conclude that the disk instability has enabled this planet to form at such a great distance. And, it is in a striking contrast to expectations of planet formation by the widely accepted core accretion model.

The new analysis combines data from two Hubble instruments: the Space Telescope Imaging Spectrograph and the Near Infrared Camera and Multi-Object Spectrograph. These data were compared to those from a state-of-the-art planet imaging instrument called SCExAO on Japan's 8.2-meter Subaru Telescope located at the summit of Mauna Kea, Hawaii. The wealth of data from space and ground-based telescopes proved critical, because distinguishing between infant planets and complex disk features unrelated to planets is very difficult. Source:NASA

[einienj]

That's an insane size for a planet!

[grantsmythe]

There are many mind-blowing things about the universe but the distances are just incomprehensible.
Einstein said that the speed of light could not be exceeded so we humans just don't live long enough for any significant space travel. The distances are just too great.

[bushcraftandastronomer.]

Interesting info and how planets really form wouldn't it be awesome if you could travel there and see it happening right next to you! In future who knows what discoveries they will be in the formation of planets!

[MELOMOKOTOGULU]

The Narator is so slightly and understand-stable voice.More blessing and teaching did to too understand-stable information.If we had Narator like this, how apriciate and.Thanks verymuch!

[khev_gas_mask]

You forgot the largest planet the name is HD-100546-b the largest planet and HD-10906-b is the lonely planet in the universe and is 1.1× the size of jupiter and the scientist name it super jupiter and it has rings and WASP-17b is 1.9× the size of jupiter it's bigger then other gas giants