Melisssa Kennedy

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Tsunami warnings, watches issued after Gulf of Alaska earthquake

A magnitude 7.9 earthquake in the Gulf of Alaska triggered a series of tsunami alerts early Tuesday from southern Alaska down the western coast of North America, prompting warnings in some low-lying communities for people to seek higher ground.<p>But initial fears that such a massive tremor could …

Natural Disasters

The state of Israel’s cybersecurity market

Ofer Schreiber Contributor<p>Ofer Schreiber is a partner at YL Ventures.<p>More posts by this contributor:<p>Trends in Israel’s cybersecurity investments<br>• The drone race is off and running, with Israel in the lead<p>Iren Reznikov Contributor<p>Iren Reznikov is an analyst for YL Ventures.<p>More posts by this …

Venture Capital

Iran's elites are much more vulnerable than they think

The wave of recent protests throughout Iran is the latest sign of Tehran's crisis of leadership. It is a crisis that has indicted all echelons of the state and all the factions that compete for power within it.<p>For over a week, Iranian protesters, chanting slogans against figures including Iran's …

South Asia

Even as we use more gadgets, American energy consumption is dropping

More appliances? No problem.<p>From blaring alarm clocks to late-night Netflix binges, the average American uses 12 kilowatt-hours of energy around the house every day. That’s a lot of wattage—enough to drive a Nissan Leaf across Rhode Island—but it’s also our lowest personal-consumption rate since …

Gear & Gadgets

Trump’s War on the Press Follows the Mussolini and Hitler Playbook

Never forget: Mussolini and Hitler made their first target the press. After a year of ‘alternative facts’ you can see why.<p>Beneath the madness and the …

Donald Trump

Astronomers Figure Out How Black Holes Can Blast Out Relativistic Jets of Material Across Light Years of Space

Black holes have been an endless source of fascination ever since Einstein’s Theory of General Relativity predicted their existence. In the past 100 …

Black Holes

Can We Build a Hack-Proof Internet Using Quantum Physics? New Breakthrough Heightens 'Technology Arms Race'

Is it possible to build a network that’s impossible to hack? Quantum physicists believe it might.<p>Scientists have previously demonstrated that quantum …

These wirelessly-powered AA batteries pull energy from thin air

Did you know that more than 3 billion batteries are thrown away every year in the United States? The Cota Forever Battery is the world’s first …

Clean Energy

The Heartbeat of Racism Is Denial

When our reality is too ugly, we deny reality. It is too painful to look at. Reality is too hard to accept.<p>Mental health experts routinely say that denial is among the most common defense mechanisms. Denial is how the person defends his superior sense of self, her racially unequal society.<p>Denial is …

Achievement Gap

'Very high level of confidence' Russia used Kaspersky software for devastating NSA leaks

Three months after U.S. officials asserted that Russian intelligence used popular antivirus company Kaspersky to steal U.S. classified information, …

Where will people go for news without Facebook?

Mark Zuckerberg did what everyone in the news industry feared and many anticipated. Facebook announced Thursday that from now on, users would see more posts from their friends and family rather than from publishers and brands.<p>Zuckerberg said the change was spurred by feedback from users, who felt …

Facebook Finally Blinks

Mark Zuckerberg’s radical decision to reinvent the News Feed is a plea for mercy.<p>Mark Zuckerberg moved fast and broke shit, lots of shit.<p>He broke journalism, by radically deflating the value of the digital advertising on which the livelihood of media now depends; he broke the reading habits of his …

Social Media

16 Practical Tips For Anyone Who Wants To Write A Book

If you want to write, you've got to read.

What Mark Zuckerberg didn’t tell Congress: You’re risking more than your data on Facebook

Facebook Chief Executive Mark Zuckerberg testified before Congress about the social media giant’s recent privacy violations. On day two of answering …

Social Media

Scientists are making carbon fiber from plants instead of petroleum

Cheaper, plant-based carbon fiber could be used to make lighter cars that consume less fuel.<p>Carbon fiber is the Superman of materials. Five times stronger than steel and a fraction of the weight, it is used in everything from tennis rackets to golf clubs to bicycles to wind turbine blades to …

Engineering

In ‘Listening In,’ a Surveillance Expert Warns That No Secret Is Safe

Smartphones, smart cars, smart fridges: All are connected to the web, and hackers and governments alike are all too eager to peer inside.<p>On December …

Privacy

A Competency Test For Trump Could Be A Bad Idea

Doctors, lawyers and soldiers have to prove that they’re mentally competent to do their jobs. Should the president?<p>That’s what Rep. Brendan Boyle, a …

Mental Health

Using Facts, Not Fact-Checking, To Fight Fake News

I was recently on a bus where I encountered a woman of a type I hear about often but rarely see in real life. She was white, in her late 50s or so. …

Journalism

The Endangered Species Act Is at Risk of Being Dismantled

Since the Endangered Species Act became law in 1973, the US government has played a critical role in protecting endangered and threatened species.<p>But …

Biodiversity

Scientists expect 1st direct black hole image soon

This was the most popular post at EarthSky this week, and no wonder. It’s exciting! We’re holding our breaths for the 1st-ever direct image of a …

Robert Boyle's 17th century wishlist for future scientific breakthroughs

In 2010, The Royal Society featured the "Desiderata" (previously) of Robert "Boyle's Law" Boyle, a list of dozens of scientific discoveries and …

Royal Society

This Huge Study Is The Best Evidence Yet That Your Personality Changes Over Time

You're gonna be different when you're old.<p>You might be fundamentally <i>you</i> for your entire life, but don't expect your personality to stay the …

Puerto Rico is taking a big step toward revamping how it gets power — and it could be a model for the rest of the US

The lights are still out in more than half of Puerto Rico.<p>After Hurricane Maria struck the US territory on September 20, a crippling blackout descended over its 3.4 million residents, cutting communication between loved ones, spoiling food and life-saving medications, and nixing access to banks and …

Puerto Rico

Physicists Say They've Created a Device That Generates 'Negative Mass'

Say what?<p>Physicists have created what they say is the first device that's capable of generating particles that behave as if they have negative …

Chernobyl's Transformation Into a Massive Solar Plant Is Almost Complete

"It shouldn't be a black hole in the middle of Ukraine."<p>At the site of the Chernobyl nuclear disaster in Ukraine, work is almost finished on a huge …

Renewable Energy

'Battery' that bottles sunshine could bring a new solar revolution

A plastic-like material may do for solar power what high-performance electrical batteries have done for iPhones and Tesla cars.<p>Solar energy is clean, abundant, and irritatingly inconvenient: It doesn’t work at night or on cloudy days. You can convert sunshine into electricity and store it in a …

Clean Energy

Bulletproof Graphene: Paper-Thin Material Becomes Harder Than Diamonds On Impact

Graphene has revolutionized material science. This super-tight sheet of Carbon atoms is thinner than a sheet of paper but has some amazing physical …

Bit by bit, Trump is taking apart the New Deal’s glorious legacy

With huge tax cuts projected to create a $1.5tn deficit, cuts to social security and Medicare will surely follow<p>Since January, there have been frightening signs that America is becoming an oligarchy overseen by a dictator. From the first, Donald Trump has followed an authoritarian playbook, …

Donald Trump

The world’s first nuclear fusion plant is now halfway to ‘First Plasma’

Earlier this month, the director-general of the International Thermonuclear Experimental Reactor (ITER) announced that construction of the project …

Energy