您现在的位置是:娛樂 >>正文
【】
娛樂1598人已围观
简介We've all seen those blockbuster movies in which scientists lay out complicated, risky plans to save ...
We've all seen those blockbuster movies in which scientists lay out complicated, risky plans to save Earth from an incoming asteroid. And those plans are almost always dependent on a bit of luck.
But what would really happen in real life?
NASA thinks it has an answer, and the space agency demonstrated that solution in a concept video (below) posted on Friday.
SEE ALSO:This is how NASA spots potentially dangerous asteroids near EarthThe video shows NASA's Double Asteroid Redirection Test (DART) vehicle deliberately crashing itself into one component of the binary asteroid system called Didymos.
"DART would be NASA’s first mission to demonstrate what's known as the kinetic impactor technique -- striking the asteroid to shift its orbit -- to defend against a potential future asteroid impact," Lindley Johnson, planetary defense officer at NASA, said in a statement in June.
The plan is part of an international effort to develop a planetary defense program to address asteroids that might pose a danger to Earth.
The kinetic impact test will be carried out years from now, beginning with the first part of the mission in 2020 with the launch of two spacecraft, and execution of the test occurring in 2022.
In addition to NASA, partners in the plan include the European Space Agency (ESA), the Observatoire de la Côte d´Azur (OCA), and the Johns Hopkins University Applied Physics Laboratory (JHU/APL).
It may be years before we find out if this is effective, but at least we're finally coming up with extinction-level event asteroid contingency plans that don't include migrating to Mars with Elon Musk.
Featured Video For You
SpaceX did something amazing over the weekend
Tags:
转载:欢迎各位朋友分享到网络,但转载请说明文章出处“夫榮妻貴網”。http://new.maomao321.com/news/41b55999399.html
相关文章
This 'sh*tpost' bot makes terrible memes so you don't have to
娛樂The internet is awash in trashy memes just waiting for your late-night retweet spree. Why waste prec ...
【娛樂】
阅读更多Racist posters targeting Chinese students stir controversy at the University of Texas at Austin
娛樂Racist flyers targeting Chinese students have been seen on the University of Texas at Austin.The pos ...
【娛樂】
阅读更多Video shows you can fool Samsung Galaxy S8 face unlock with a photo
娛樂Samsung's Galaxy S8 has a nifty new feature that lets you unlock the phone using your face. It's fas ...
【娛樂】
阅读更多
热门文章
- Plane makes emergency landing after engine rips apart during flight
- A big challenger is about to change the way you use Facebook to log in on websites
- This bathroom sign doesn't care about gender, as long as you wash your hands
- New photos reveal Jeff Bezos' Blue Origin is going to be pretty swanky
- One of the most controversial power struggles in media comes to a close
- Brands are creating Snapchat 'Shows' with dreams of getting on Discover
最新文章
This weird squid looks like it has googly eyes, guys
Elephants finally catch a break as ivory prices plunge in China
Rental bidding startup seems good for landlords. Tenants? Not so much.
Apple patent filing appears to show Touch Bar in new keyboards
Nancy Pelosi warns colleagues after info hacked
Never gonna give you up: The surprising resilience of the Rickroll, 10 years later