We Just Spotted an Asteroid That Could Destroy a Continent

A newly detected asteroid, known as 2025 SC79, has sparked global attention due to its massive size and potential impact risk. This so-called “twilight killer” asteroid is large enough to devastate an entire continent if it were to collide with Earth. Scientists track near-Earth objects using powerful telescopes, and thousands of asteroids pass close to our planet every year, though only a small percentage pose any real threat. In this video, we explore asteroid detection, impact scenarios, planetary defense systems, and what makes an asteroid truly dangerous. If you’re interested in space news, asteroid threats, NASA discoveries, and real science behind doomsday asteroids, this video covers everything you need to know.
Credit:
CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/:
Ymir-full: by Brett Gladman/Canadian Astronomy Data Centre, https://commons.wikimedia.org/wiki/File:Ymir-full.gif
asteroid 35107 1991 VH: by ESA - European Space Agency, https://www.esa.int/ESA_Multimedia/Images/2025/06/Flyeye_s_view_of_asteroid_35107_1991_VH, https://commons.wikimedia.org/wiki/File:Flyeye_Telescope_view_of_asteroid_35107_1991_VH_acquired_on_20_May_2025_during_the_telescope%27s_%27first_light%27_campaign.gif
Dark Energy: by DOE/FNAL/DECam/R. Hahn/CTIO/NOIRLab/NSF/AURA, https://noirlab.edu/public/images/11-0200-10Dhr-CC/, https://en.wikipedia.org/wiki/File:Dark_Energy_Survey_(DES),_Dark_Energy_Camera_imager_and_CCDs_at_SiDet_(11-0200-10Dhr-CC).jpg
Metal Asteroid: by Full Circle CS Inc., https://skfb.ly/YEuN
CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/:
Magellan-Telescopes: by Jan Skowron, https://commons.wikimedia.org/wiki/File:Magellan-Telescopes-at-LCO-2014-04-19.jpg
Gemini Observatory: by Mailseth, https://en.wikipedia.org/wiki/File:Gemini_Observatory_at_sunset.jpg
Asteroids: by NASA/JPL-Caltech, https://commons.wikimedia.org/wiki/File:Asteroids-KnownNearEarthObjects-Animation-UpTo20180101.gif
Asteroid-2017-YE5: by NASA/JPL-Caltech, https://commons.wikimedia.org/wiki/File:PIA22560-Asteroid-2017-YE5-Orbit-20180712.gif
Pan-STARRS: by Pan-STARRS Observatory, https://hubblesite.org/contents/media/images/2019/12/4315-Image, https://commons.wikimedia.org/wiki/File:Pan-STARRS_Observatory_(2019-12-4315).jpg
Asteroid Bennu: by NASA/Goddard/University of Arizona, https://www.asteroidmission.org/?attachment_id=7915, https://commons.wikimedia.org/wiki/File:OSIRIS-REx_First_Image_of_Asteroid_Bennu.gif
Asteroid 2004 FH: by Stefano Sposetti, Raoul Behrend, Geneva Observatory, https://commons.wikimedia.org/wiki/File:Asteroid_2004_FH.gif
Asteroid Bennu: by NASA Goddard/OSIRIS-REx, https://svs.gsfc.nasa.gov/14772/
Lost World: by NASA's Goddard Space Flight Center, https://svs.gsfc.nasa.gov/14774/
NASAs Asteroid: by NASA, https://images.nasa.gov/details/JPL-20240801-NEOWISf-0001-NEOWISE%20Legacy%20of%20NASAs%20Asteroid%20Hunting%20Telescope
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