Editing Impact event (section)

===Current response status===
{{main|Asteroid impact avoidance}}
In April 2018, the [[B612 Foundation]] reported "It's 100 per cent certain we’ll be hit [by a devastating asteroid], but we're not 100 per cent certain when."<ref name="INQ-20180428"/> Also in 2018, [[physicist]] [[Stephen Hawking]], in his final book ''[[Brief Answers to the Big Questions (book)|Brief Answers to the Big Questions]]'', considered an asteroid collision to be the biggest threat to the planet.<ref name="WP-20181015"/><ref name="QZ-20181014"/> In June 2018, the US National Science and Technology Council warned that America is unprepared for an [[Asteroid impact avoidance|asteroid impact event]], and has developed and released the ''"[https://trumpwhitehouse.archives.gov/wp-content/uploads/2018/06/National-Near-Earth-Object-Preparedness-Strategy-and-Action-Plan-23-pages-1MB.pdf National Near-Earth Object Preparedness Strategy Action Plan]"'' to better prepare.<ref name="WH-20180621"/><ref name="GIZ-20180621"/><ref name="ICARUS-220180522"/><ref name="NYT-20180614"/><ref name="NYT-20180614c"/> According to expert testimony in the United States Congress in 2013, [[NASA]] would require at least five years of preparation to launch a mission to intercept an asteroid.<ref name="US-Congress-20130410" />  The preferred method is to deflect rather than disrupt an asteroid.<ref name="PHYS-20190304">{{cite news |author=Johns Hopkins University
 |title=Asteroids are stronger, harder to destroy than previously thought
 |url=https://phys.org/news/2019-03-asteroids-stronger-harder-previously-thought.html
 |date=4 March 2019 |work=[[Phys.org]] |access-date=4 March 2019 |author-link=Johns Hopkins University
}}</ref><ref name="ICRS-20190315">{{cite journal |last1=El Mir |first1=Charles |last2=Ramesh |first2=KT |last3=Richardson |first3=Derek C.
 |title=A new hybrid framework for simulating hypervelocity asteroid impacts and gravitational reaccumulation
 |date=15 March 2019 |journal=[[Icarus (journal)|Icarus]] |volume=321 |pages=1013–1025
 |doi= 10.1016/j.icarus.2018.12.032|bibcode=2019Icar..321.1013E|s2cid=127119234 }}</ref><ref name="NYT-20190308">{{cite news |last=Andrews |first=Robin George
 |title=If We Blow Up an Asteroid, It Might Put Itself Back Together – Despite what Hollywood tells us, stopping an asteroid from creating an extinction-level event by blowing it up may not work.
 |url=https://www.nytimes.com/2019/03/08/science/asteroids-nuclear-weapons.html
 |date=8 March 2019 |work=[[The New York Times]] |access-date=9 March 2019}}</ref>