
ALT In this view of the Moon, the near side (the hemisphere we see from Earth), is visible at the top half of the Moon disk. It is identifiable by the dark splotches. These are ancient lava flows from a time early in the Moon\u2019s history when it was volcanically active. The large crater that appears below the lava flows, dark in the center, is Orientale basin, a nearly 600-mile-wide crater that straddles the Moon\u2019s near and far sides as is partly visible from Earth on the edge of the Moon. In this image, we have a full view of the crater. Everything below the crater is the far side, the hemisphere we don\u2019t get to see from Earth because the Moon rotates on its axis at the same rate that it orbits round us. Credit: NASA

ALT On a snowy March 16, 1926, Dr. Robert H. Goddard rests his hand on the testing frame supporting his liquid fuel rocket at Ward Farm in Auburn, Massachusetts. A wooden door is propped up at an angle next to the frame where Goddard\u2019s assistant, Henry Sachs, later sheltered after lighting the rocket.

ALT A SpaceX Falcon Heavy rocket with the Psyche spacecraft onboard is seen at Launch Complex 39A at NASA’s Kennedy Space Center in Florida. The tall, white rocket emblazoned with the blue NASA insignia and orange-and-purple Psyche mission branding is flanked by booster rockets smudged with black char from previous launches. A cloudy sky unfolds behind the launchpad. Credit: NASA/Aubrey Gemignani

ALT A graphic titled “Exoplanet K2-18 b: Atmosphere Composition.” The graphic shows the spectra of the exoplanet K2-18 b from NIRISS and NIRSpec in the form of a graph, with the vertical y-axis labeled as Amount of Light Blocked and the horizontal axis labeled as Wavelength of Light (microns). The data is plotted as dots with vertical error bars. A jagged blue line running through the plot represents the best-fit model. There are semi-transparent magenta, red and green vertical columns also scattered across the plot, indicating where variations in the line represent the presence of methane, carbon dioxide, and dimethyl sulfide (combined with other molecules), respectively. Behind the graph is an illustration of the planet and star. The planet is a large fuzzy blue-ish sphere off to the right, taking up half of the background. The red star is smaller at the bottom left of the entire graphic.




























