Earth is about to have a temporary ‘mini-moon’ | CNN
网页12 小时之前 · CNN —. Earth is about to gain a new “mini-moon,” but it won’t stay around for long. The newly discovered asteroid, named 2024 PT5, will temporarily be captured by Earth’s gravity and ...
NASA’s Planetary Radar Tracks Two Large Asteroid Close …
网页2024年7月3日 · NASA's Goldstone Solar System Radar imaged the asteroids 2024 MK and 2011 UL21 as they flew by Earth at distances of 4.1 million miles and 184,000 miles, respectively. The observations revealed their sizes, shapes, surfaces, and possible moons, and provided information for planetary defense.
NASA simulates how the U.S. might respond to asteroid threatening Earth ...
网页2024年6月21日 · Imagine if scientists discovered a giant asteroid with a 72% chance of hitting the Earth in about 14 years — a space rock so big that it could not only take out a city but devastate a whole...
When a cruise liner-size asteroid zips by Earth, two spacecraft …
网页2024年7月16日 · When a cruise liner-size asteroid comes within 19,883 miles (32,000 kilometers) of Earth on April 13, 2029, it won’t be alone. The European Space Agency has announced that its new Ramses...
Two Killer Asteroids Are Flying by Earth, and You May Be Able to …
网页2024年6月27日 · This week, two asteroids — one big enough to destroy a city, and the other so large it could end civilization — are set to fly near our planet. Don’t panic. Both have a zero percent chance ...
Asteroid Watch | NASA Jet Propulsion Laboratory (JPL)
网页Learn how NASA monitors and assesses the orbits and impact risks of asteroids and comets that approach Earth. Explore the interactive visualization of near-Earth objects and the latest news and updates from Asteroid Watch.
Next Five Asteroid Approaches - NASA Jet Propulsion Laboratory …
网页Learn about the dates, sizes and distances of the next five asteroids that will fly by Earth in September 2024. See images and details of each object and how to track them with the Asteroid Watch dashboard.
NASA Analysis: Earth Is Safe From Asteroid Apophis for 100-Plus …
网页2021年3月26日 · Asteroid Apophis, once considered a potential threat to Earth, is now ruled out as a hazard for at least a century, according to radar and orbit analysis. The asteroid will make a close approach in 2029 and be …
Apophis - NASA Science
网页Apophis is a near-Earth asteroid that was once considered a potential threat to Earth, but is now ruled out as an impact hazard for at least a century. Learn about its orbit, shape, rotation, and the OSIRIS-APEX mission to study it in 2029.
Near-Earth Asteroids as of September 2024 - Science@NASA
网页2024年8月29日 · Learn about the latest figures on NASA's planetary defense efforts and near-Earth object close approaches as of September 2024. Find out which asteroids could pose an impact hazard with Earth and how NASA is monitoring and mitigating the risk.
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