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Where did Neptune's mysterious moon Nereid come from? It may be the only survivor of the planet's violent history
Neptune's moon Nereid might be the only satellite surviving from the planet's original system, researchers report in a new study.
Venus and the crescent moon dazzle in a spectacular post-sunset show (photos)
The moon and Venus met in the western sky on May 18-19, setting the stage for a dramatic photoshoot.
NASA satellite images uncover dramatic changes in Earth's nighttime lights
Using nearly a decade of satellite observations, NASA's Black Marble project reveals a constantly shifting portrait of human nighttime activity visible from space.
An astronaut's view of Argentina's snow-capped mountains | Space photo of the day for May 20, 2026
Earth is so beautiful from afar.
NASA's Psyche probe takes awesome images of Mars on way to (possibly) precious asteroid
NASA's asteroid-bound Psyche spacecraft flew by Mars for a gravity assist on the way to its final target. And it took some close-up pictures on the way.
The universe's 'most relaxed' galaxy cluster was shaped by cosmic violence, new study finds
What's the truth behind this unusually tranquil city of galaxies?
SpaceX launches Starlink satellites on stunning sunset Falcon 9 flight (video)
A SpaceX Falcon 9 rocket carrying 24 Starlink satellites lifted off from Vandenberg Space Force Base in California on Tuesday, May 19, 2026.
Lasers in moon craters could create a lunar GPS system
Scientists think permanently shadowed lunar craters offer the perfect foundation for navigation on the moon.
