The opinion archive provides access to past opinion stories from Communications of the ACM and other sources by date.
Shortly before Halloween, the chairman of Harvard's astronomy department openly declared that an interstellar object hurtling through our Solar System might just be part of an extraterrestrial craft. And then . . . crickets.…
The science and technology behind NASA's latest space explorer to land on Mars are so awe-inducing that it's hardly surprising when scientists commenting on the triumph drop their usual jargon to speak like excited schoolchildren…
Feng Zhang, one of the inventors of the gene-editing technique CRISPR, has called for a global moratorium on using the technology to create gene-edited babies.
Since their invention more than 100 years ago, airplanes have been moved through the air by the spinning surfaces of propellers or turbines.
Social media has played a key role in the recent rise of violent right-wing extremism in the United States, including three recent incidents—one in which a man was accused of sending mail bombs to critics of the president, another…
Alphabet Inc. Chairman John Hennessy is unsure about a banner strategy of the company's most-important executive.
Digital privacy has come a long way since June 2013. In the five years since documents provided by Edward Snowden became the basis for a series of revelations that tore away a veil of secrecy around broad surveillance programs…
During the summer before the 2016 presidential election, John Seymour and Philip Tully, two researchers with ZeroFOX, a security company in Baltimore, unveiled a new kind of Twitter bot.
Yoshua Bengio is a grand master of modern artificial intelligence.
As you travel this holiday season, bouncing from airport to airplane to hotel, you'll likely find yourself facing a familiar quandary: Do I really trust this random public Wi-Fi network?
The White House has revoked the press pass of Jim Acosta, CNN's chief White House correspondent, after a testy exchange between the reporter and President Trump at a news conference on Wednesday.
Quantum computing is all the rage. It seems like hardly a day goes by without some news outlet describing the extraordinary things this technology promises.
In my book Data and Goliath, I write about the value of privacy. I talk about how it is essential for political liberty and justice, and for commercial fairness and equality.
If there's one line that stands the test of time in Steven Spielbergs 1993 classic "Jurassic Park," it's probably Jeff Goldblum's exclamation, "Your scientists were so preoccupied with whether or not they could, they didn't stop…
The little camera on this phone has a superpower: It can see things our eyes cannot.
If we are to make it less of a threat to democracy, that effort is going to need to start in schools.
Every year at the World Internet Conference, held since 2014 in the photogenic canal town of Wuzhen near Shanghai, companies and government officials have convened to send a message: China is a high-tech force to be reckoned …
Andrew Moore is the new head of Google's Cloud AI business, a unit that is striving to make machine-learning tools and techniques more accessible and useful for ordinary businesses.
On Monday morning, just 24 hours before polls opened in the US midterm elections, President Trump sounded an alarm with a Tweet: "Law Enforcement has been strongly notified to watch closely for any ILLEGAL VOTING which may take…
Western bigwigs were a no-show at China's biggest web conference. But in their absence, the local overseers of the nation's technology industry were only too happy to plug their unique vision for the global internet.
For the past eight years, climate science has been under a sort of spell in the House of Representatives.
Results from the United States' midterm elections are still pouring in, but a handful of candidates with backgrounds in science or technology have already nabbed seats in the US House of Representatives.
It may not have been the tsunami some expected, but the Democrat's long-promised blue wave was enough to carry the party to a majority in the House of Representatives on Tuesday. The Senate, meanwhile, remained firmly in Republican…
The closest place in the universe where extraterrestrial life might exist is Mars, and human beings are poised to attempt to colonize this planetary neighbor within the next decade.
You've probably heard that we're in the midst of an A.I. revolution.
We know for sure that Cesar Sayoc, who allegedly targeted high-profile Democrats with mail bombs in late October, isn't a Russian bot.
Nearly two-thirds of the social media bots with political activity on Twitter before the 2016 U.S. presidential election supported Donald Trump.
When the Boston public school system announced new start times last December, some parents found the schedules unacceptable and pushed back.
If Julian Assange of WikiLeaks denies the Ecuadorian government's stinging charge that he's a disgusting houseguest, he'd do well not to deny that charge "categorically."
Who is Camille Noûs, who has contributed to hundreds of papers on Google Scholar?
By 2019, I generally thought there wasn't much that could surprise me about organizing meetups. Then Covid-19 hit. I was …
Napier's multiplication and division rods, deriving from the basic multiplication table, simplify calculations considerably.