Researchers have discovered that wide-orbit planets are likely the natural result of developing planetary systems, and the result has implications for Planet 9.
Newly combined data shows Andromeda and Milky Way galaxies might not collide as previously assumed. The research puts chances of a galactic collision at 50/50.
Scientists have found humpback whales and calves swimming in cold waters, far from traditional breeding grounds. Greater awareness could help protect them.
For the first time, astronomers have observed a pair of galaxies where one is piercing the other with intense radiation from a quasar powered by a black hole.
The UK's Royal Astronomical Society has endorsed a statement with over 150 European science institutions raising concerns about threats to US academic freedom.
Members of the EarthSky community - including scientists, as well as science and nature writers from across the globe - weigh in on what's important to them.