We’re all familiar with the sun’s daily motion in the sky. It rises in the east, gets higher in the sky until circa noon, then begins its hours-long descent to set on the western horizon.

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A Denisovan skull has been identified for the first time. The find was based on proteins and calcified dental plaque ...

Researchers bring a SETI approach to the question of what—if anything—humpbacks’ underwater smoke rings might be trying to ...

NOAA’s Hurricane Hunter airplane missions significantly increase the accuracy of hurricane forecasts, but President Trump’s ...

Gravitational assists are an emblematic example of why space travel is hard —it is exactly rocket science, after all. Gravity ...

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Screwworm parasites primarily infect livestock, but human cases have risen in Central America after the pests escaped ...

Gaia, Europe’s Milky Way–mapping spacecraft, shut down earlier this year. It was arguably the most important—and most ...

Taken together, the findings mean that bag bans and fees aren’t a plastic panacea but do matter. “These plastic bag policies ...

Hundreds of trans people, activists and supporters rally outside of the Supreme Court of the United States in Washington, D.C ...

American military engineers designed the GBU-57/B bomb to devastate deeply buried bunkers without radioactive fallout. It’s ...