The dome of the Gemini North telescope can be seen on top of Mauna Kea in Hawaii, with shimmering star trails and satellite streaks arcing overhead.
"This study changes how we see the Pleiades — not just seven bright stars, but thousands of long-lost siblings scattered across the whole sky."
A European Mars orbiter spotted barcode-like dust streaks on the slopes of Apollinaris Mons, revealing how tiny avalanches help drive the Red Planet's massive dust cycle.
This quiz explores the world's most powerful telescopes and observatories — on Earth and beyond.
This image captures Comet Lemmon in dramatic fashion, its bright coma and faint tail arcing across the starfield.
Quantum gravity seeks to unify the theory of general relativity with quantum physics to describe how gravity works at very small scales. But there's a big puzzle surrounding the idea.
The X5.1-class eruption from sunspot AR4274 is this year's most powerful solar flare and Earth is in the firing line.
Scientists just 3D printed human muscle tissue in microgravity conditions. The ultimate goal is to make organs in space.
"Solar Orbiter can now provide this missing piece of the puzzle."
The European Space Agency's Copernicus Sentinel-2 satellite mission captured a plume of ash over the Planchón-Peteroa volcanic complex.
