Facebook officially rolls out hashtags

Updated 02 July 2013

Facebook officially rolls out hashtags

Facebook just launched the ability to follow conversations via hashtags, as was reported in March.
To be clear, there was nothing stopping you from including hashtags in your Facebook content before — it’s just that they didn’t have any real functionality. In its blog post announcing the new feature, the company acknowledges that this isn’t exactly a new idea, noting that it will be “similar to other services like Instagram, Twitter, Tumblr, or Pinterest” — when you click on a hashtag, you’ll get a feed of comments using the hashtag. Facebook says its capabilities will include searching for hashtags, clicking on hashtags that come from other services, and writing posts directly from the hashtag feed.
NBA Facebook Hashtag by The Social Clinic
Here’s how Facebook explains the reasoning behind the addition:
Every day, hundreds of millions of people use Facebook to share their thoughts on big moments happening all around them. Whether it’s talking about a favorite television show, cheering on a hometown sports team or engaging with friends during a breaking news event—people on Facebook connect with their friends about what’s taking place all over the world. …
To bring these conversations more to the forefront, we will be rolling out a series of features that surface some of the interesting discussions people are having about public events, people, and topics. As a first step, we are beginning to roll out hashtags on Facebook.
Note that Facebook says it’s only “beginning to roll out” the feature, so you might not see it right away. (The company generally doesn’t turn on features for its entire user base at once, but instead rolls them out gradually.) Note also that the company says it’s going to be introducing more features in this vein.
To illustrate the scale of the conversation on Facebook, the company notes that between 88 million and 100 million Americans are using the service during primetime television hours. Game of Thrones‘ Red Wedding last week was mentioned 1.5 million times, while there were 66.5 million interactions (which include likes, comments and posts) around this year’s Oscars.
The blog post doesn’t go into something we wondered about when we started hearing about the feature in March — privacy. The idea of a “public conversation” works differently on Facebook than it does on a service like Twitter, since many Facebook posts have some degree of privacy restriction.
A company spokesperson said that from a privacy perspective, hashtags will work similarly to Facebook Graph Search. In other words, you’ll only see the comments that you’re authorized to see. So if you include a hashtag in a friends-only post, then only friends will still be the only ones who can see it in a hashtag search.


NASA finds Indian moon lander with help of amateur space enthusiast

Updated 03 December 2019

NASA finds Indian moon lander with help of amateur space enthusiast

  • NASA released an image taken by its Lunar Reconnaissance Orbiter that showed the site of the spacecraft’s impact
  • A version of the picture was marked up to show the associated debris field

WASHINGTON: India’s Vikram lunar lander, which crashed on its final approach to the Moon’s surface in September, has been found thanks in part to the sleuthing efforts of an amateur space enthusiast.
NASA made the announcement on Monday, releasing an image taken by its Lunar Reconnaissance Orbiter (LRO) that showed the site of the spacecraft’s impact (September 7 in India and September 6 in the US).
A version of the picture was marked up to show the associated debris field, with parts scattered over almost two dozen locations spanning several kilometers.
In a statement, NASA said it released a mosaic image of the site on September 26 (but taken on September 17), inviting the public to compare it with images of the same area before the crash to find signs of the lander.
The first person to come up with a positive identification was Shanmuga “Shan” Subramanian, a 33-year-old IT professional from Chennai, who said that NASA’s inability to find the lander on its own had sparked his interest.
“I had side-by-side comparison of those two images on two of my laptops ... on one side there was the old image, and another side there was the new image released by NASA,” he said, adding he was helped by fellow Twitter and Reddit users.
“It was quite hard, but (I) spent some effort,” said the self-professed space nerd, finally announcing his discovery on Twitter on October 3.
NASA then performed additional searches in the area and officially announced the finding almost two months later.
“NASA has to be 100% sure before they can go public, and that’s the reason they waited to confirm it, and even I would have done the same,” said Subramanian.
Blasting off in July, emerging Asian giant India had hoped with its Chandrayaan-2 (“Moon Vehicle 2“) mission to become just the fourth country after the United States, Russia and regional rival China to make a successful Moon landing, and the first on the lunar south pole.
The main spacecraft, which remains in orbit around the Moon, dropped the unmanned lander Vikram for a descent that would take five days, but the probe went silent just 2.1 kilometers above the surface.
Days after the failed landing, the Indian Space Research Organization said it had located the lander, but hadn’t been able to establish communication.