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Salts and Organics Observed on Ganymede’s Surface by NASA’s Juno

November 2, 2023
NASA’s Juno mission has observed mineral salts and organic compounds on the surface of Jupiter’s moon Ganymede. Data for this discovery was collected by the Jovian InfraRed Auroral Mapper (JIRAM) spectrometer aboard the spacecraft during a close flyby of the icy moon. The findings, which could help scientists better understand the origin of Ganymede and the composition of its deep ocean, were…
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See SWOT Mission’s Unprecedented View of Global Sea Levels

November 2, 2023
The Surface Water and Ocean Topography (SWOT) satellite is sending down tantalizing views of Earth’s water, including a global composite of sea surface heights. The satellite collected the data visualized above during SWOT’s first full 21-day science orbit, which it…
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The Crab Nebula Seen in New Light by NASA’s Webb

October 30, 2023
NASA’s James Webb Space Telescope has gazed at the Crab Nebula, a supernova remnant located 6,500 light-years away in the constellation Taurus. Since the recording of this energetic event in 1054 C.E. by 11th-century astronomers, the Crab Nebula has continued to draw attention and additional study as scientists seek to understand the conditions, behavior, and after-effects of supernovae through…
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NASA Is Locating Ice on Mars With This New Map

October 30, 2023
Buried ice will be a vital resource for the first people to set foot on Mars, serving as drinking water and a key ingredient for rocket fuel. But it would also be a major scientific target: Astronauts or robots could one day drill ice cores much as scientists do on Earth…
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NASA-ISRO Radar Mission to Provide Dynamic View of Forests, Wetlands

October 30, 2023
Once it launches in early 2024, the NISAR radar satellite mission will offer detailed insights into two types of ecosystems – forests and wetlands – vital to naturally regulating the greenhouses gases in the atmosphere that are driving global climate change. NISAR is a joint mission by NASA and ISRO (Indian Space Research Organisation), and when in orbit, its sophisticated radar systems will…
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How NASA Is Protecting Europa Clipper From Space Radiation

October 25, 2023
When NASA’s Europa Clipper begins orbiting Jupiter to investigate whether its ice-encased moon, Europa, has conditions suitable for life, the spacecraft will pass repeatedly through one of the most punishing radiation environments in our solar system. Hardening the…
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NASA’s Voyager Team Focuses on Software Patch, Thrusters

October 20, 2023
Engineers for NASA’s Voyager mission are taking steps to help make sure both spacecraft, launched in 1977, continue to explore interstellar space for years to come. One effort addresses fuel residue that seems to be accumulating inside narrow tubes in some of the thrusters…
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International Ocean Satellite Monitors How El Niño Is Shaping Up

October 19, 2023
Not all El Niño events are created equal. Their impacts vary widely, and satellites like the U.S.-European Sentinel-6 Michael Freilich help anticipate those impacts on a global scale by tracking changes in sea surface height in the Pacific Ocean. Water expands as it warms, so sea levels tend to be higher in places with warmer water. El Niños are characterized by higher-than-normal sea levels and…
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