观测结果表明，HR 8799系统中已广泛研究的行星富含二氧化碳气体。这一发现提供了有力证据，表明该系统的四颗巨行星的形成方式类似于木星和土星——通过核心吸积过程逐步积累固体核心，并从原行星盘中吸引气体。

Researchers using NASA's James Webb Space Telescope have examined ancient galaxies to explore the secrets of the early ...

Astronomers are gobsmacked by an abundance of oxygen in JADES-GS-z14-0, the earliest (and most distant) known galaxy in the ...

Webb's exquisite details reveal a chance, random alignment of a protostellar outflow and a distant spiral galaxy.

NASA’s James Webb Space Telescope has provided a direct look at the multiple gas giant planets within the iconic planetary ...

Astronomers discovered bright hydrogen emissions from an ancient galaxy, puzzling researchers over how this light pierced the universe's early hydrogen fog.

The NASA/ESA/CSA James Webb Space Telescope has captured a beautiful juxtaposition of the nearby protostellar outflow known ...

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in ...

In this image of the Serpens Nebula from NASA’s James Webb Space Telescope, astronomers found a grouping of aligned protostellar outflows within one small region (the top left corner). Serpens ...

Another stunning image from the James Webb Space Telescope shows a plume of warm dust and gas formed by jets from a baby star.