
ALT This image features the Vela Pulsar, the aftermath of a collapsed and exploded star sending a jet of particles into space. The pulsar resembles a soft, pillowy, lavender bean in a pocket of blue gas. A faint stream of gas, the X-ray jet, appears to shoot from the pocket, heading into the distance at our upper right. Purple markings in the lavender bean shape strongly resemble narrow eyes and an open mouth, giving the pulsar a squinting happy face. In this image, X-ray light is shown in blues and purples.

ALT A pair of plastic prototypes of the CADRE rovers demonstrate driving in formation during a test at NASA's Jet Propulsion Laboratory in 2022. The protoypes are black and have four wheels. They sit on simulated reddish Martian soil. Seven of these “Mercury 7” prototypes were built, each named for one of NASA’s seven Project Mercury astronauts. John (for John Glenn) and Scott (for Scott Carpenter) are shown here. Credit: NASA/JPL-Caltech





















