An explanation of the polar vortex that's right now making Chicago colder than the Arctic.

New polls find most Americans are worried about climate change, but few would pay more than a dollar a month to fix it.

The goal was to address the global scientific community through “more sophisticated articles than you would see in Aeon or n+1 or even Quanta... But not the peer-reviewed scientific journals like Nature or Science.” A Peter Thiel-funded magazine spreads junk science, apparently to controvert mainstream evolutionary biology and climate science.

This time around, the shutdown was painful enough that Congress finally appears ready to legislate to end these recurring funding debacles.

The Office of Management and Budget congratulates itself for its efforts to pay most of the furloughed government workers by Thursday.

Former Joshua Tree National Park head says damage to the park during the shutdown could take up to 300 years to repair.

Contradicting Trump's foreign policy, new American intelligence says North Korea isn't likely to stop making nuclear weapons, and Iran isn't trying to build a bomb.

Like Russia, the US is producing a low-yield nuke for a conventional war that—in theory—wouldn't escalate to a "nuclear war."

Legislators in New York passed six gun control laws yesterday, including one allowing people to petition for specific high-risk individuals to be prohibited from owning firearms, and another banning teachers from carrying guns on campus.

Among white American families with young children, handgun ownership is increasing, as are childhood gunshot deaths.

In northern Mexico, 40,000 textile workers are on a wildcat strike after a corporate tax cut.

Not yet convicted of a crime, pretrial detainees who can't afford bail occupy 75% of Texas county jail beds.

Through a recently uncovered iOS bug, you could listen to people via FaceTime before they answered your call. The mother of the 14-year-old who discovered the flaw warned Apple more than a week prior to the company finally disabling the feature.

Using small "cube satellites," startups are offering surveillance to businesses who want a peek at what other companies are up to.

Facebook now blocks tools that reveal how users are targeted—"to keep people’s information safe," according to a spokesperson.

Brain scans of people on LSD find the drug appears to work by flooding the thalamus—which normally acts as a filter—with signals.

See also: For decades, the US government banned medical studies of the effects of LSD. But for one longtime, elite researcher, the promise of mind-blowing revelations was just too tempting.

Once thought to mirror each other, the Northern and Southern lights don't match, possibly due to the Sun's pressure.

Recorded music revenue and sales by format from 1973 onward show the Napster cliff and the rise of downloads and streaming.

Watch: Previously unreleased footage of New Order playing "Ceremony" in Manchester in 1981, less than a year after Ian Curtis's death.

Javier Riera's light projections fit perfectly on trees and their branches, overlaying geometric shapes on nature.