This moderate-resolution view of the surface of one of Jupiter's moons, Europa, shows the complex icy crust that has been extensively modified by fracturing and the formation of ridges. The ridge ...

Mars shines in the evening, and is joined briefly by Mercury. Jupiter joins Venus as the month goes on. And all month, look ...

Written by Sharon Wilson Purdy, Planetary Geologist at the Smithsonian National Air and Space Museum Earth planning date: Wednesday, June 11, 2025 As we near the end of our Altadena drill campaign, ...

The solar wind starts its journey at the Sun. It emanates from features on the Sun such as dark and cool regions called coronal holes and active regions, which are characterized by strong magnetic ...

Figure 3. These images of Typhoon Kong-rey observed on October 29, 2024, show microwave data from TROPICS-3 . This storm formed in the Central Pacific Ocean near Guam on October 24, and tracked east, ...

May - Cool as Ice Every winter, a layer of carbon dioxide frost (dry ice) forms on the surface of Mars. At its greatest extent in midwinter, this frost reaches from the poles down to the middle ...

This artist’s concept portrays the supermassive black hole at the center of the Milky Way galaxy, known as Sagittarius A* (A-star). It’s surrounded by a swirling accretion disk of hot gas. The black ...

This is a montage of NASA Hubble Space Telescope views of our solar system's four giant outer planets: Jupiter, Saturn, Uranus, and Neptune, each shown in enhanced color. The images were taken over ...

Figure 2. Preliminary results of the transmission derived from SAGE III/ISS lunar measurements (y-axis) and its comparison with collocated SAGE III/ISS solar measurements (x-axis). The comparisons are ...

As a planet orbits a star, the star wobbles. This causes a change in the appearance of the star’s spectrum called Doppler shift. Because the change in wavelength is directly related to relative speed, ...

On Wednesday, Nov. 6, 2024, NASA’s Parker Solar Probe will complete its final Venus gravity assist maneuver, passing within 233 miles (376 km) of Venus’ surface. The flyby will adjust Parker’s ...