101955 Bennu 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 and tied for the highest cumulative rating on the Palermo Technical Impact Hazard Scale. It has a cumulative 1-in-1,800 chance of impacting Earth between 2178 and 2290 with the greatest risk being on 24 September 2182. 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) and has been observed extensively with the Arecibo Observatory planetary radar and the Goldstone Deep Space Network. Bennu was the target of the OSIRIS-REx mission which is intended to return its samples to Earth in 2023 for further study. On 3 December 2018, the OSIRIS-REx spacecraft arrived at Bennu after a two-year journey. 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.
On 18 June 2019, NASA announced that the OSIRIS-REx spacecraft had closed in and captured an image from a distance of 600 metres (2,000 ft) from Bennu's surface. In October 2020, OSIRIS-REx successfully touched down on the surface of Bennu, collected a sample using an extendable arm, secured the sample and prepared for a return trip to Earth. On 10 May 2021, OSIRIS-REx successfully completed its departure from the Bennu asteroid while still carrying the sample of the asteroid rubble.
Astrometric observations between 1999 and 2013 have demonstrated that 101955 Bennu is influenced by the Yarkovsky effect, causing the semimajor axis of its orbit to drift on average by 284±1.5 meters/year. Analysis of the gravitational and thermal effects has given a bulk density of ρ = 1190±13 kg/m3, which is only slightly denser than water. Therefore, the predicted macroporosity is 40±10%, suggesting the interior has a rubble pile structure or even hollows. The estimated mass is (7.329±0.009)×1010 kg.
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For bummed out about friend that just died again thinki about how fucking weird this guy was, like, with seven billion people the human race lost one percent of its uniqueness just from him being gone. One of God's prototypes and just rocked it.
More space stuff, nerds
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ah. yeah, I can help you. maybe drop an example here and I can try and walk you through it?
I do, but I try not to communicate off the site for opsec reasons. you can just dm the example on this site, or make a post so that everyone can learn (plus, there are other comrades here that are also engineers, and so they might chime in too.)
If you don't believe that society consists of two parts, the base and the superstructure, then you can never say that you believe in Marxist ideas.
Fuck space. Nothing good out there. No snacks amd all the rocks are too cold to play with.
Wake me up when we make an earth base. An artiic dome, a sea lab, an arcology. All the same tech as a space base but you get snacks and you can still pay 9.99 to get timely access to streaming wwe wrestling programs. Which is not a bad deal all things considered. Can't leisurely browse old attatude era wresling programs on mars despite what the musk hounds tell you.
Make your own megathread then lol, space is fucking awesome
I've made an earth base before. I live in an earth base someone else made rn. It is aka a house. But yeah, fuck going to space until it's actually fun.
if she's not from the island of lesbos she's not a real lesbian, she's just a sparkling homo
I spent like six hours busting my knuckles and grinding my back into gravel while working on my car today and so much of my body is in various states of discomfort. There's people, like lots of people, who do this ten hours a day every day. A body just can't sustain that much abuse.
I wish leftists would just remember that the entire ukraine thing is about Nordstream 2 and American control of energy supplies.
I was listening to MSNBC and they were talking about Putin and Russia. The expert said "In a communistic system..."
Holy fuck, last chapter of Debt by Graeber goes so fucking hard it’s giving me whiplash. I swear to fucking god, it’s the single greatest piece of anti-doomerism I’ve read in ages.
I’ve indulged in nothing but pure morbid fascination with the poisonous hold of capitalism over our lives. It’s seemed like every account of the realities of capitalism was bookended with pure doom.
Graeber ends with a certified FUCKING BANGER. You don’t even have to read the entire book, just the last chapter. I’m gonna post some quotes for those who haven’t read it but I want to run through a fucking brick wall right now.
Hunger Games weirdly came out of the whole YA craze being one of the least fucked up and most ideologically coherent series.
It somehow identified the evils of imperialism, class warfare, revolution being the only option, patriarchy, the power of agitprop, solidarity and collectivism, and a whole bunch of aspects around the psychology of revolutions.
The big dystopian baddie even has the title of “President” instead of a more othering one like “secretary”, “general”, “prime minister”, etc
Ending still kinda sucked tho.
