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By European Space Agency
Asteroid 2024 YR4 made headlines earlier this year when its probability of impacting Earth in 2032 rose as high as 3%. While an Earth impact has now been ruled out, the asteroid’s story continues.
The final glimpse of the asteroid as it faded out of view of humankind’s most powerful telescopes left it with a 4% chance of colliding with the Moon on 22 December 2032.
The likelihood of a lunar impact will now remain stable until the asteroid returns to view in mid-2028. In this FAQ, find out why we are left with this lingering uncertainty and how ESA's planned NEOMIR space telescope will help us avoid similar situations in the future.
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By NASA
NASA/Bob Hines NASA astronaut Bob Hines took this picture of the waning crescent moon on May 8, 2022, as the International Space Station flew into an orbital sunrise 260 miles above the Atlantic Ocean off the northwest coast of the United States. Since the station became operational in November 2000, crew members have produced hundreds of thousands of images of our Moon and Earth through Crew Earth Observations.
Image credit: NASA/Bob Hines
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By NASA
Explore This SectionScience Europa Clipper 3-D Cilix Crater on Europa Europa Clipper Home MissionOverview Facts History Timeline ScienceGoals Team SpacecraftMeet Europa Clipper Instruments Assembly Vault Plate Message in a Bottle NewsNews & Features Blog Newsroom Replay the Launch MultimediaFeatured Multimedia Resources About EuropaWhy Europa? Europa Up Close Ingredients for Life Evidence for an Ocean This view of Cilix impact crater on Europa was created in 2013 using 3-D stereo images.NASA/JPL-Caltech/Cynthia Phillips Downloads
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May 29, 2025
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This view of Cilix impact crater on Europa was created in 2013 using 3-D stereo images taken by NASA’s Galileo spacecraft, combined with advanced image processing techniques. The crater has a diameter of about 11 miles (18 kilometers).
This image, which combines a 3-D Digital Elevation Model, or DEM, with original imagery, shows that the crater rim rises steeply for about 980 feet (300 meters) above a flat crater floor that is interrupted by a central peak which has a height of about 660 feet (200 meters). Such central peaks are common on other bodies in the solar system. Young, well-preserved craters like Cilix are rare on Europa’s surface, where ongoing geologic activity is thought to disrupt most surface features over timescales of tens of millions of years.
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