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

【sex nepali video】What we'll see when NASA crashes into an asteroid on purpose

For 10 months,sex nepali video a NASA spacecraft the size of a vending machine has zipped through space on a never-before-attempted journey of self destruction to ram into a harmless asteroid.

Why, you ask? Target practice.

Now the DART spacecraft, short for Double Asteroid Redirection Test, is about to land its blow, crashing head on into Dimorphos, a 525-foot space rock about the size of the High Roller ferris wheel in Las Vegas. For the U.S. space agency, intentionally destroying this $330 million metal box is part of its first planetary defense mission — training for the day humans may need to stop an asteroid barreling toward Earth.


You May Also Like

"My heart rate has increased a little bit," said Michelle Chen, lead engineer of DART's autopilot system, known as SMART Nav.

SEE ALSO: Vigilant amateur asteroid hunters keep watch for menacing space rocks

What exactly will engineers see from the mission operations center at a distance of 6.8 million miles from the crash? Perhaps more than you'd think, and NASA will share its front-row seat with the rest of the world.

Pictures from a camera, the only instrument on the spacecraft, will come back live before the collision. NASA plans to broadcast the mission starting at 6 p.m. ET on Sept. 26 and share the images publicly as DART beams them down, right through the 7:14 p.m. impact.

But don't expect the hit to look like a planet obliterating in the sky, Armageddon-style, with glowing space ripples and chunks of rock blowing off, intermixed with close-ups of Bruce Willis' pained face. The spacecraft, at some 1,300 pounds, is going to give Dimorphos more of a nudge than annihilation — a technique intended to shove an asteroid off a collision course without creating a massive spray of debris that could be dangerous in its own right.

"Sometimes we describe it as running a golf cart into the Great Pyramid," said Nancy Chabot of Johns Hopkins Applied Physics Laboratory in Maryland. "This really is about asteroid deflection, not disruption."

"Sometimes we describe it as running a golf cart into the Great Pyramid."

Like a moon, Dimorphos orbits another larger asteroid, Didymos. The pair makes an oval-shaped orbit around the sun, stretching from beyond Mars to just outside Earth's orbit. It takes about two years for them to make a complete loop.

Though Dimorphos won't explode, the smack of the spacecraft will leave a crater and blast possibly up to 220,000 pounds of pulverized rock into space.

The sharp spacecraft images should be "spectacular," Chabot said, with a new one snapped every second. Think of it like a first-person video game, only you'll experience the crash from the perspective of the uncrewed spacecraft, zooming toward the asteroid at 14,000 mph.

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 feed should unfold almost in real time, with perhaps just a 45-second delay. At first, the asteroid will appear as a mere point of light. That speck will eventually grow in the frame, until the DART spacecraft goes kaput.

"It will start filling the field of view … at about two minutes out and closer," Chen said.

NASA engineers inspecting the LICIACube satelliteMore pictures will come afterward from a small spacecraft supplied by the Italian Space Agency called the LICIACube. Credit: Johns Hopkins APL / Ed Whitman

Asteroid aftermath

More pictures will come afterward from a toaster-sized spacecraft supplied by the Italian Space Agency. The LICIACube will fly by the disaster site three minutes later and capture shots of the collision and debris with its two cameras. Those first pictures from the aftermath won't be available for a few days, with more to follow over weeks and months.

Scientists also will try to observe the crash with space telescopes Webb and Hubble, along with the Lucy probe, a spacecraft on a 12-year asteroid tour in the outer solar system.

But none of these instruments will tell NASA how much DART moved the asteroid. For that, the team will need ground-based telescopes to take measurements. Dimorphos goes around its bigger companion Didymos every 11 hours and 55 minutes. With observatories on Earth, scientists hope to confirm the collision bumped it closer, making its orbit somewhere in the neighborhood of 10 minutes shorter.

The 44-person DART team has been rehearsing different scenarios for the mission for months, adjusting parameters and gathering data, said Ed Reynolds, DART project manager at the Johns Hopkins Applied Physics Lab. As time edges closer to Monday's impact, his biggest concern is attendance in the mission operations center in Laurel, Maryland, and keeping personnel free of COVID-19 during the long shifts.

Over the weekend, the team was focused on performing some trajectory correction maneuvers to make sure the spacecraft was on the right path to hit the asteroid.


Related Stories
  • Vigilant amateur asteroid hunters keep watch for menacing space rocks
  • If a scary asteroid will actually strike Earth, here's how you'll know
  • How scientists find the big asteroids that can threaten Earth
  • A meteorite punched a hole in a dog house. Now it's a collector's item.
  • The most mysterious asteroids in the solar system

"I don't worry about the spacecraft. I don't worry about the algorithms. They're not what keeps me up at night," he said.

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

Threatening asteroids

Millions of asteroids orbit the sun. They're the rocky rubble left over from the formation of the solar system about 4.6 billion years ago. The majority are in the main asteroid belt between Mars and Jupiter, but occasionally rocks get nudged into the inner solar system.

Such stray asteroids rarely come close to home, but at least three have caused mass extinctions throughout history, the most notorious of which wiped out the dinosaurs.

Today astronomers watch for space rocks in the 30 million-mile vicinity. There are currently no known asteroids on an impact course with Earth. Scientists are, however, keeping an eye on 30,000 large objects out there — including 10,000 about 460 feet wide or larger — a size big enough to devastate a city or region if it were to become earthbound.

Crews repairing damage after the Chelyabinsk meteorite explosionWorkers repair a power line near the wall of a local zinc plant which was damaged by a shockwave from a meteor in Chelyabinsk, Russia, on Feb. 15, 2013. Credit: Oleg Kargopolov / AFP via Getty Images

But even smaller rocks can cause a lot of harm. An undetected meteor exploded over Chelyabinsk, Russia, in February 2013, causing an airburst and shockwave that affected six cities. About 1,600 people were injured in the blast. The rock was just about 60 feet across, according to NASA.

While there's no immediate threat to the planet known, NASA believes tests such as DART are necessary studies to protect life on Earth in the future.

"This is what you would want to do for planetary defense," Chabot said. "You're trying to just give something a small nudge, which only changes its position slightly, and that adds up to a big change in position over time."

0.2353s , 14074.1484375 kb

Copyright © 2025 Powered by 【sex nepali video】What we'll see when NASA crashes into an asteroid on purpose,Public Opinion Flash  

Sitemap

Top 主站蜘蛛池模板: 亚洲 校园 春色 另类 图片 | 国产欧美自拍偷怕日韩亚洲 | 免费国产作爱视频网站 | 亚洲A片无码精品毛片色戒 亚洲A片无码一区二区蜜桃 | 午夜精品久久久久久久第一页 | 日本网络视频www色高清免费 | 亚洲午夜精品A片久久不卡蜜桃 | a一片女人一区二区三区 | 国产综合一区二区三区精品 | 狠狠色丁香久久婷婷综 | 精品国产亚洲人成在九九 | 中文字幕亚洲综合小综合在线 | 亚洲日本欧美综合在线一电视剧在线观看 | 黑丝丝教师爆乳翘臀上课 | 18成人片黄网站WWW | 麻豆av一区二区 | 亚洲国色一区二区爱啪 | 国产在线观看中文字幕 | 成人国产免费av一区二区三区 | 久久久久人妻一区精品色欧美 | 美女干逼逼一区二区 | 日本免费AAAAA毛片视频 | 18禁黄色网站亚洲 | 2024国产精品自在线拍 | 精品国产卡一卡2卡3卡 | 久久国产一片免费观看 | 日韩一区二区aⅴ无码大片无码 | 美国一级毛片免费视频观看 | 亚洲视频www| 亚偷熟乱区综合一区二区在线 | 中文国产| 熟女人妻久久中文字幕一二区 | 少妇内射高潮福利炮 | 中文字幕国产91在线手机版 | 女人高潮被爽到呻吟在线观看 | 在线观看欧美一区二区三区 | 国产成人综合久久亚洲精品 | av高清毛片在线观看 | 日本高清视频www夜色资源 | 无码av蜜臀aⅴ色欲在线观看 | 国产成人无码免费视频 |