Lindley Johnson, a planetary defense officer for NASA, told the BBC on Sunday that an historic asteroid exploded in the Earth's atmosphere in December that had 10 times the energy than the Hiroshima atomic bomb.
NASA has reported that a large meteor explosion over the Bering Sea, near Russia's Kamchatka Peninsula in December 2018 went unnoticed despite being second in power over the last 30 years of observations.
According to information just released by NASA, the blast, which occurred on December 18, is the biggest since the fireball over Chelyabinsk in Russian Federation six years ago. The meteor exploded at 25.6km above the Bering Sea with an energy of 173 kilotons.
The asteroid came through the Earth's atmosphere at a speed of 32km/s on December 18, on a steep trajectory of seven degrees, BBC News reported.
An asteroid expert at NASA said that the latest meteor only had 40 per cent of the energy release as that of Chelyabinsk and it exploded over the Bering Sea, which is why it didn't cause a lot of buzz.
Military surveillance satellites picked up on the blast as it happened, and NASA was notified of the event by the US Air Force. These types of blasts are dubbed "problems without passports" because they might impact entire regions if they come into contact with Earth's atmosphere. The real danger, NASA says, comes from near-Earth objects (NEOs) that have a diameter of more than 460 ft.
They said a monitoring system would need space-based observatories as well as ground telescopes to give it any chance of success.
Dr Amy Mainzer of the Centre for Near-Earth Object Studies at Nasa's Jet Propulsion Laboratory (JPL), said: "The idea is really to get as close as possible to reaching that 90 per cent goal of finding the 140m and larger near-Earth asteroids given to Nasa by Congress".
To get a comprehensive map of all potential threats to Earth, researchers have estimated a couple of more decades through NeoCam and other projects.
People who ate two or more eggs a day had the highest risk of developing heart disease or experiencing an early death. The latest United States government nutrition guidelines, from 2015, removed the strict daily cholesterol limit.
En 1979 il se blesse en nageant, contracte une infection due à la pollution qui aggrave sa blessure et risque de perdre sa jambe. Ses problèmes de santé arriveront très tôt dans sa carrière (un cancer du colon à la fin des années 60).
The use of throwaway plastic is a particular problem in some South East Asian countries, including the Philippines. Authorities conduct a necropsy on a dead Cuvier's beaked whale in Mabini, Compostela Valley.
England return to action in the opening match of their Euro 2020 qualifying campaign when they host Czech Republic at Wembley. Manchester City's Fabian Delph and Chelsea's Ruben Loftus-Cheek had also withdrawn because of injury.
Le Liégeois joue ce tournoi Challenger pour retrouver un peu de confiance après un début de saison difficile. Engagé cette semaine au tournoi Challenge de Phoenix, David Goffin a été éliminé en quarts de finale.
Young people in countries around the world are expected to take part in the event urging action on climate change. Last month thousands of United Kingdom students took to the streets to protest climate change.
Tarrant twice visited Turkey for a total of 43 days in 2016, Erdogan said, vowing to "uncover the connection soon". He has frequently brought those grievances and other populist issues to the forefront during elections.
Eli Manning's overpaid, can't play is crock — Giants GM
He also admitted to numerous conversations with the San Francisco 49ers past year , though nothing materialized. With football being the ultimate team game, we turned that fact into three valuable assets, at the very least".
Myspace vient de perdre 12 ans de musiques téléchargées
Une situation qui fait suite à une migration de serveurs ratée, qui aurait entraîné la corruption des fichiers en question. De 2003 à 2015, 50 millions de morceaux y ont été uploadés par près de 14 millions de musiciens, amateurs et confirmés.
Vicky Kaushal and Harleen Sethi are no more a 'couple'?
In fact, Harleen has even unfollowed Vicky on Instagram and has been liking a lot of heartbreak quotes on social media these days. Whatever happened, happened in a very organic way. "We enjoy each other's company and we are each other's best critics".
Nicolas Pépé ne se précipitera pas cet été — LOSC
En multipliant les bonnes performances, les courtisants sont devenus plus nombreux, plus prestigieux, et forcement plus offrant. L'ancien Angevin effectue une saison pleine et compte rester dauphin du PSG avec les Dogues, jusqu'à la fin de saison.
Hope You Didn't Have Any Old Music on MySpace
A disastrous relaunch in 2013 led to most bands having to rebuild their communities from scratch. As well as music, the site has accidentally deleted pictures and video stored on its servers.