Astronomer finds gas giant exoplanets formed earlier than previously thought
A fresh look at past data reveals that exoplanets with masses similar to Jupiter formed much sooner than previously thought, ...
Hosted on MSN4mon
First Brown Dwarf Candidates Discovered Beyond Our Galaxy, 200,000 Light-Years From Earth
The classification is not exactly strict at both ends. The line between a gas giant planet and a brown dwarf is vague. For example, JWST spotted objects that are likely brown dwarfs but are ...
Hosted on MSN1mon
Giant planet or 'failed star?' Newfound mystery world blurs the lines
"With an orbital period of 570 days, it is a relatively cold gas giant planet ... material available to build giant planets. On the matter of planet or brown dwarf, Stefánsson's team remain ...
Space.com on MSN10d
James Webb Space Telescope dives into the atmosphere of a mystery rogue planet or failed star
Using the James Webb Space Telescope (JWST), astronomers have peered into the atmosphere of a cosmic body that could be a ...
Tech Explorist3d
Webb uncovers atmospheric complexity of free-floating planetary-mass object SIMP 0136
Using the James Webb Space Telescope, an international team of researchers has uncovered the hidden complexity of SIMP 0136, ...
New Atlas4d
Strange X-ray signal could be coming from a doomed planet
Astronomers have detected mysterious X-ray signals coming from a nearby white dwarf star for more than 40 years. We may now ...
Space.com20d
When will the sun die?
it would be a rocky cinder orbiting a white dwarf. What will happen to other planets in the solar system when the sun dies? The big question is, “What will happen to the gas giants” in the ...
National Geographic news1y
White Dwarfs
At this stage, the star becomes a large red giant ... gas called a planetary nebula. Within this nebula, the hot core of the star remains—crushed to high density by gravity—as a white dwarf ...