Set as Homepage - Add to Favorites

日韩欧美成人一区二区三区免费-日韩欧美成人免费中文字幕-日韩欧美成人免费观看-日韩欧美成人免-日韩欧美不卡一区-日韩欧美爱情中文字幕在线

【xem phim s?】NASA discovers asteroid is a dead ringer for the Empire State Building

Imagine this hurtling through space: Scientists have xem phim s?found an asteroid with dimensions similar to the Empire State Building.

This asteroid, which recently sped past Earth, has caught the attention of NASA astronomers for its bizarre long shape. The space rock — which has perhaps whizzed by to set the record straight that not all asteroids are vaguely ball-like — is more than three times as long as it is wide.

To get a sense of its scale, scientists have estimated the rock is about 1,600-by-500 feet, roughly comparable to that of the world-famous landmark that looms over 100 stories above New York.


You May Also Like

"Of the 1,040 near-Earth objects observed by planetary radar to date, this is one of the most elongated we’ve seen," said Lance Benner, principal scientist at NASA's Jet Propulsion Laboratory, in a statement.

SEE ALSO: A mistake on the Webb telescope just led to a surprising discovery

The asteroid, known as 2011 AG5, zipped past Earth at a safe distance of 1.1 million miles away on Feb. 3, according to the U.S. space agency. But that approach gave astronomers their first crack at studying its size, rotation, surface, and silhouette in detail since the object was discovered 12 years ago.

"This is one of the most elongated [asteroids] we’ve seen."

The image above is a collage of six pictures taken of the long object by the Goldstone Solar System Radar antenna dish in California. There were no signs of King Kong clinging to the towering rock, but astronomers did make a few other observations: It has a dark charcoal color, appears to be scooped on one side, and is slowly spinning around every nine hours.

It takes the asteroid about twice as long to orbit the sun as Earth and won’t have a near flyby with this planet until 2040, when it could come within 670,000 miles, according to NASA. That's close in terms of the cosmos — space, after all, is a big place — but it's still three times farther than the moon is to Earth.

Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!
The elongated asteroid orbiting the sunA 2012 plot of asteroid 2011 AG5, which shows that it travels beyond the orbit of Mars and as close to the sun as halfway between Earth and Venus. Credit: NASA / JPL-Caltech / NEOPO

Want more scienceand tech news delivered straight to your inbox? Sign up for Mashable's Top Stories newslettertoday.

Millions of space rocks orbit the sun. They're the rocky rubble left over from the formation of the solar system about 4.6 billion years ago. Most of that ancient detritus is too far away to pose a threat to this planet. The majority are in the main asteroid belt between Mars and Jupiter, but occasionally rocks get nudged into the inner solar system, relatively closer to Earth.

There are no known asteroids on an impact course with Earth. Scientists are, however, keeping a close watch on 30,000 large objects out there and estimate there could be 15,000 or so more waiting to be discovered. Using powerful telescopes to scan the sky, astronomers are finding about 500 new sizable space rocks in Earth's solar system neighborhood each year.

"An asteroid impact is an extremely rare event," said Lindley Johnson, planetary defense officer for NASA, last year. "Maybe once a century is there an asteroid that we would really worry about and want to deflect."


Related Stories
  • Boom! NASA just slammed into an asteroid and filmed the crash
  • Vigilant amateur asteroid hunters keep watch for menacing space rocks
  • NASA's surprising reason for crashing into an asteroid's moon
  • It worked! NASA successfully moved a stadium-sized asteroid.
  • Scientists find massive meteorite in Antarctica heavier than most bowling balls
"Maybe once a century is there an asteroid that we would really worry about and want to deflect."

But even smaller rocks can cause immense destruction. An impact by an asteroid some 100 to 170 feet wide could destroy a small city, according to NASA. Ten years ago this week, on Feb. 15, 2013, an undetected meteor exploded over Chelyabinsk, Russia, causing a disaster that affected six cities and injured 1,600 people. The rock was just 60 feet across.

Nations are developing warning systems and defense strategies, in case an asteroid or comet should ever meander into an orbit that could jeopardize civilization. As a test, NASA launched a spacecraft in November 2022, known as the DART mission, to intentionally crash into a harmless asteroid in deep space to try to shift its trajectory. The $330 million exercise was successful, proving NASA is capable of thwarting a potentially hazardous space rock in the future.

Shortly after 2011 AG5 was discovered, some people were concerned it could be a danger to the planet decades into the future. Armed with little information about its orbit at the time, scientists couldn't make accurate estimates about its location to put people's minds at ease.

Paul Chodas, director of the Center for Near Earth Object Studies at the lab, said the asteroid "became a poster child" when early observations showed it had a small chance of a future Earth hit.

"Continued observations of this object ruled out any chance of impact," he said in a statement. "And these new ranging measurements by the planetary radar team will further refine exactly where it will be far into the future.”

0.1232s , 10000.9921875 kb

Copyright © 2025 Powered by 【xem phim s?】NASA discovers asteroid is a dead ringer for the Empire State Building,Public Opinion Flash  

Sitemap

Top 主站蜘蛛池模板: 欧美性类s0x | 激情综合婷婷色五月蜜桃 | 激情综合色综合啪啪开心 | 99在线精品视频在线观看 | 亚洲欧美日韩另类在线播放 | 91精品久久久久精品电影免费在线 | 黄色网页在线播放 | 亚洲中国成人影院 | 亚洲av无码成人网站国产 | 午夜精品久久久久久久久久久久 | 美女视频黄的全是免费 | 91久久精品一区二区三 | www.日本成人在线观看 | 国产情侣一区二区三区 | 亚洲国产精品一区二区久久hs | 亚洲日本欧美综合在线一电视剧在线观看 | 亚洲精品久久久久久久观小说 | 2024国产自产拍精品露脸不卡 | 精品成人国产主播第一区 | 国产日韩高清制服一区 | 人妻一区二区三区四 | 免费特级毛片 | 精品一区二区三区无码AV久久 | 狠狠干吧 | 亚洲国产精品成人影院 | 国产 免费 一区二区 | 动漫精品啪啪一区二区免费 | 亚洲精品无播放器在线观 | 国产日韩精品一区二区在线播 | 麻花传媒68XXX在线观看 | 国内精品久久人妻无码网站 | 中文精品久久久久国产网址 | 国产无套粉嫩白浆在线观看 | 福利片一区二区 | 在线播放无码后入内射少妇 | 精品无码一区二区三区免费 | va无码中文字幕 | 国产亚洲欧美在线中文无广告亚洲精品日韩美女高清写真图片 | 久久中文字幕人妻丝袜 | 日本无码蜜桃波多野结衣 | 99久久人妻无码精品系列无遮挡韩国我电影人妻丰满 |