This Year's Largest And Fastest Asteroid Is About To Zoom Past Earth
Word Count
Reading Level
Listen to Article
On March 21, 2021, Earth will have its closest encounter with 2001 FO32 — the largest and fastest-known asteroid scheduled to fly past our planet this year. The space rock, estimated to be between 2,526 feet ( 0.47 miles) and 5,577 feet (1.05 miles) in diameter, will zip past Earth at a staggering speed of 76,980 miles per hour (123,887 km/h). To put it in perspective, that is about 100 times faster than the speed of sound!
FO32 is among the thousands of "near-Earth objects," or NEOs, that orbit the sun in our cosmic neighborhood. It was first spotted by the Lincoln Near-Earth Asteroid Research (LINEAR) program telescopes in New Mexico on March 23, 2001. The space rock's highly elliptical orbit around the Sun — which takes 810 days, or just over two years — brings it close to Earth every thirty to fifty years. While FO32 will revisit our planet on March 22, 2052, the 2021 flyby will be its closest one in the next 200 years!
NASA researchers have tagged the asteroid as a "potentially hazardous object." The classification refers to all space rocks that can make close approaches to Earth and are large enough — over 450 feet (140 meters) in diameter — to cause significant damage in the event of impact. Fortunately, FO32, which will be 1.3 million miles away — or about five times the distance between the Earth and the Moon — at its closest approach at 11:03 a.m. EST (1603 GMT) on March 21, 2021, poses no such risk during this, or any future, encounters.
Stargazers hoping to catch a glimpse of flyby asteroids usually have to wait patiently for at least 5 to 10 minutes until their backyard telescopes can detect the space rocks which appear like slow-moving “stars.” However, since FO32 is moving at such rapid speeds, observers with an 8 inch or larger telescope will be able to watch the space rock soar by in real-time during its closest approach. While FO32 will be visible worldwide, due to its position in the southern sky, the best views will be reserved for Southern Hemisphere residents. Also, since the asteroid's closest approach will occur during daylight hours in the US, residents hoping to catch a glimpse will have to seek out space rock a little earlier, at about at 4:45 a.m. EST when the skies are still dark,
Resources: Earthsky.org, BGR.com, livescience.com
Get the Workbook for this article!
Workbook contains: Article, Reading Comprehension, Critical Thinking Questions, Vocabulary in Context (+ answers), Multiple Choice Quiz (+ answers), Parts of Speech Quiz (+ answers), Vocabulary Game (+ answers)Cite Article
Learn Keywords in this Article
305 Comments
nasapadowireabout 2 yearsYour luck if you got to see it this time- nasapadowireabout 2 yearsSad where all not gonna be alive to see it pass again
ami18about 2 yearsI was relived that it was only close or didn't and won't crash but still cool news.
amyblueabout 2 yearsYeah, I'm glad that we are safe. But this was great news
- ami18about 2 yearsOh, at first I was scared if it touches earth but then it says it was close but won't and I was relived!!! Cool news.
uniquenessabout 2 yearsWhat if it touches our planet!?
wertqazabout 2 yearsit can't it would burn up in the atmosprere because its not to big compared to my small town
coolgirl000about 2 yearsLike when my sister read this she cried
christmaabout 2 yearsWow, that was REALLY close!
astromner0089about 2 yearsthat would be bad because we get used to the freezing tempatures and if the earth mover later we would burn to death and there would be alot of causilties
chickenboiabout 2 yearsWhat if It Landed and we bit dust like the dinos. Good we didn't!
hawicuwu-160066195599about 2 yearsi hope it dont touch our planet