The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing their thick atmospheres.
Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, but harmless on the ground.
Test your grasp of the forces and ideas that shape our universe.
Even though the Red Planet's atmosphere is thin, wind is still one of Mars' most relentless sculptors.
"The knowledge of these will ultimately help us understand the formation of the first stars and planets and how our own Milky Way came into being."
C/2024 E1 (Wierzchos) brightened significantly ahead of its close approach to the sun.
Astonishingly, we can identify molecules present in the atmospheres of exoplanets.
"It's like watching a cosmic volcano erupt again after ages of calm — except this one is big enough to carve out structures stretching nearly a million light-years across space."
Chinese researchers have completed a full end-to-end simulation of the Chinese Space Station Telescope's observing systems, offering a preview of how the powerful scope will survey the universe.
Ancient shoreline features hint that water on Mars once formed a vast ocean.
