An asteroid killed the dinosaur’s, Bennu will kill us all

An asteroid killed the dinosaur’s, Bennu will kill us all

101955 Bennu (provisional designation 1999 RQ36)[9] is a carbonaceous asteroid in the Apollo group discovered by the LINEAR Project on 11 September 1999. It is a potentially hazardous object that is listed on the Sentry Risk Table with the second-highest cumulative rating on the Palermo Technical Impact Hazard Scale.[10] It has a cumulative 1-in-2,700 chance of impacting Earth between 2175 and 2199 .[11][12] It is named after the Bennu, the ancient Egyptian mythological bird associated with the Sun, creation, and rebirth.

101955 Bennu has a mean diameter of 490 m (1,610 ft; 0.30 mi)

Bennu is the target of the OSIRIS-REx mission which is intended to return its samples to Earth in 2023 for further study.[15][16][17] On 3 December 2018, the OSIRIS-REx spacecraft arrived at Bennu after a two-year journey. [18] It orbited the asteroid and mapped out Bennu’s surface in detail, seeking potential sample collection sites. Analysis of the orbits allowed calculation of Bennu’s mass and its distribution.[19]

On 20 October 2020 OSIRIS-REx successfully touched down, using an extendable arm, on the surface of Bennu to collect a sample.[21]

101955 Bennu - Wikipedia

Sentry is a highly automated impact prediction system operated by the JPL Center for NEO Studies (CNEOS) since 2002. It continually monitors the most current asteroid catalog for possibilities of future impact with Earth over the next 100+ years

Sentry (monitoring system) - Wikipedia

1-53-55WATCH- NASA’s OSIRIS-REx spacecraft to collect sample …YouTube · PBS NewsHour4 days ago.url (69 Bytes)

4-54Tour of Asteroid BennuYouTube · NASA Goddard2 weeks ago.url (69 Bytes)


Your OP is pretty much a cut and paste of the opening paragraphs of the wiki article on Bennu.

OK. Bennu is out there. Bennu is big enough that if it hit Earth, it’d do a bunch of damage. Though far less than mass-extinction level damage.

And has a very small chance (as best we can tell today) of being anything other than something cool for our great^6-grandkids to look at in a telescope as it goes by.

Ho hum. Nothing to get worked up about here.

Though the fact NASA is visiting it right now as I type is really, really cool.

I cannot imagine why someone would “report” this-?

This is a topic for discussion only; what’s up !!


What is your opinion? Your title implies you think it’ll be a big deal, but you’ve helpfully and reasonably posted links only to factual sites, not alarmist sites.

By “us all” do you mean all humans or all life on Earth? Neither of those is likely given Bennu’s size. It’s big, but it’s not Chicxulub big.

And at least right now the odds are very much in our favor.

Its Palermo rating of -1.69 implies it’s about 1/50th as dangerous as the normal annual background noise of meteor impacts. Small beer indeed.

Because in GD it’s expected that you will propose a topic for debate. So what are you debating? That Bennu is big enough to kill us all? That it’s likely to hit us? That we’re better able than dinosaurs to prepare for an extinction level event? What’s your question? There’s no debate if all you’re doing is copypasta from Wikipedia.

The title of the OP is really wrong. (it looks like click bait) Not only about the chances of impact, but the size and composition point to a bad time for some if that happens, but not an extinction event.

As NASA reported elsewhere:

But, mission officials stressed, that chance is slim, and the space rock is not nearly big enough to pose an existential threat to the planet, despite what some media reports claimed over the weekend. [Potentially Dangerous Asteroids (Images)]

“We’re not talking about an asteroid that could destroy the Earth,” OSIRIS-REx principal investigator Dante Lauretta, of the Lunar and Planetary Laboratory at the University of Arizona, told “We’re not anywhere near that kind of energy for an impact.”

Reported because you still can’t figure out how not to put download links in your posts.

Wikipedia already does a good job of hosting their own pages. There’s no need for Wiki articles to be reposted here.

Moderator Warning

rboyce, you’ve previously been instructed not to post links that ask to be downloaded. YOU ARE ONCE AGAIN INSTRUCTED NOT TO POST LINKS IN YOUR POSTS, SINCE YOU DON’T SEEM TO BE ABLE TO DO THIS CORRECTLY.