This video is a compilation of thousands of images taken by the MESSENGER spacecraft of Mercury. It’s rendered in exaggerated colors to highlight different surface features. Rays emanating from a northern impact that stretch across much of the planet, and about half-way through the video, the light colored Caloris Basin, a northern ancient impact feature that filled with lava, rotates into view. Recent analysis of MESSENGER data indicates that Mercury has a solid inner core.\

Video Credits: NASA / Johns Hopkins University Applied Physics Laboratory / Carnegie Institution of Washington

THEMIS Looks at Phobos

These animations shows three views of the Martian moon Phobos as viewed by the Mars Odyssey orbiter. The apparent motion is due to movement by Odyssey’s camera, Thermal Emission Imaging System (THEMIS) rather than moon.

Each of the three panels is a series of images taken on different dates (from top to bottom): 29 September, 2017; 15 February, 2018; and 24 April, 2019. Deimos, Mars’ other moon, can also be seen in the second panel. These are visible light images, but THEMIS is mainly used for thermal-infrared scans.

Image Credit: NASA

NGC 1483

ngc-1483-smallNGC 1483 us a barred spiral galaxy a bit over 60 million light-years away.  Barred spiral galaxies are so named because of the prominent bar-shaped structures found in their center. Roughly two-thirds of all spiral galaxies, including the Milky Way, are barred. It’s been suggested that bars may be a common stage in the formation of spiral galaxies and may indicate that a galaxy has reached full maturity.

Image Credit: ESA / NASA