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An impressionistic visualization of what’s called the “Tip of the Red Giant Branch,” when diagramming the distribution of stars’ brightness versus their color.

Revealing the galactic bar.

The Lunar Module ascent stage with Moon-walking astronauts Neil Armstrong and Edwin Aldrin Jr. approaches for a rendezvous with the Apollo Command Module staffed by astronaut Michael Collins.

Schematic of graphene/boron nitride superconductor/insulator: The material is composed of three 2D layers of graphene (gray) sandwiched between 2D layers of boron nitride (red and blue) to form a repeating pattern called a moiré superlattice. Superconductivity is indicated by the light-green circles, which represent the positive charge sitting on each unit cell of the moiré superlattice.

Upper (left) and lower photomultiplier tube arrays are prepared for LZ at the Sanford Underground Research Facility in Lead, South Dakota.

Investigated region on Ryugu.

Raising crops on Mars is far easier in science fiction than it will be in real life: The Red Planet is an inhospitable world. Among other challenges, subzero temperatures mean water can persist on the surface only as ice, and the planet's atmosphere offers little protection to plants (or people) from the Sun's radiation.

Hubble Peers at Galactic Cherry Blossoms

Wildfire Sparks in Sugarcane Fields on the Island of Maui