Astronomy Picture of the Day [1]Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2024 May 25 [2]See Explanation. Clicking on the picture will download the highest resolution version available. Manicouagan Impact Crater from Space Image Credit: [3]NASA, International Space Station [4]Expedition 59 Explanation: Orbiting 400 kilometers above Quebec, Canada, planet Earth, the International Space Station [5]Expedition 59 crew captured this snapshot of the broad St. Lawrence River and curiously circular Lake Manicouagan on April 11. Right of center, the ring-shaped lake is a [6]modern reservoir within the eroded remnant of an ancient 100 kilometer diameter impact crater. The ancient crater is very [7]conspicuous from orbit, a visible reminder that Earth is vulnerable to [8]rocks from space. Over 200 million years old, the Manicouagan crater was likely caused by the impact of a rocky body about 5 kilometers in diameter. Currently, there is no known asteroid with a significant probability of impacting Earth in the next century. Each month, [9]NASA’s Planetary Defense Coordination Office [10]releases an update featuring the most recent figures on near-Earth object close approaches, and other facts about comets and asteroids that could pose a potential impact hazard with Earth. Tomorrow's picture: explosion on the Sun __________________________________________________________________ [11]< | [12]Archive | [13]Submissions | [14]Index | [15]Search | [16]Calendar | [17]RSS | [18]Education | [19]About APOD | [20]Discuss | [21]> __________________________________________________________________ Authors & editors: [22]Robert Nemiroff ([23]MTU) & [24]Jerry Bonnell ([25]UMCP) NASA Official: Amber Straughn [26]Specific rights apply. [27]NASA Web Privacy, [28]Accessibility Notices A service of: [29]ASD at [30]NASA / [31]GSFC, [32]NASA Science Activation & [33]Michigan Tech. U. References 1. https://apod.nasa.gov/apod/archivepix.html 2. https://apod.nasa.gov/apod/image/2405/iss059e019043.jpg 3. https://www.nasa.gov/ 4. https://www.nasa.gov/mission/expedition-59/ 5. https://www.flickr.com/photos/nasa2explore/albums/72157684823968065/ 6. https://en.wikipedia.org/wiki/Manicouagan_Reservoir 7. https://apod.nasa.gov/apod/ap180529.html 8. https://apod.nasa.gov/apod/ap130812.html 9. https://science.nasa.gov/planetary-defense-news/ 10. https://science.nasa.gov/science-research/planetary-science/planetary-defense/near-earth-asteroids/ 11. https://apod.nasa.gov/apod/ap240524.html 12. https://apod.nasa.gov/apod/archivepix.html 13. https://apod.nasa.gov/apod/lib/apsubmit2015.html 14. https://apod.nasa.gov/apod/lib/aptree.html 15. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search 16. https://apod.nasa.gov/apod/calendar/allyears.html 17. https://apod.nasa.gov/apod.rss 18. https://apod.nasa.gov/apod/lib/edlinks.html 19. https://apod.nasa.gov/apod/lib/about_apod.html 20. http://asterisk.apod.com/discuss_apod.php?date=240525 21. https://apod.nasa.gov/apod/ap240526.html 22. http://www.phy.mtu.edu/faculty/Nemiroff.html 23. http://www.phy.mtu.edu/ 24. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html 25. http://www.astro.umd.edu/ 26. https://apod.nasa.gov/apod/lib/about_apod.html#srapply 27. https://www.nasa.gov/about/highlights/HP_Privacy.html 28. https://www.nasa.gov/general/accessibility/ 29. https://astrophysics.gsfc.nasa.gov/ 30. https://www.nasa.gov/ 31. https://www.nasa.gov/centers/goddard/ 32. https://science.nasa.gov/learners 33. http://www.mtu.edu/