NASA's James Webb Space Telescope has spotted a young star flinging heat-formed crystals outward on a cosmic conveyor belt, offering a new clue to how comets evolve.
"Instead of Webb's 6.5-meter diameter, it's like we are observing this region with a 13-meter space telescope."
"A bit like dinosaurs on Earth — they were enormous and primitive. And they had short lives, living for just a quarter of a million years."
The supernova exploded over 13 billion years ago in a galaxy far, far away.
A spectacular new view of two dwarf galaxies caught in the middle of a cosmic collision reveals a glowing gas bridge, streams of newborn stars and the ongoing gravitational tug-of-war reshaping both galaxies.
Astronomers have spotted a distant world "shedding" its atmosphere into space in real time, creating a giant cloud of helium gas that sweeps across its parent star well before the planet itself.
The astronomers estimate that this galaxy will deplete itself of gas in only a few hundred million years.
The unique system features two rare Wolf-Rayet stars, and a supergiant companion that is interrupting the flow of the dust shells that the two Wolf-Rayet stars cast off.
The molecules are building blocks of the chemical precursors of things such as RNA.
An ultra-high-resolution instrument on board NASA's $10 billion James Webb Space Telescope has been suffering from blurry vision. AI helped fix the problem.
