This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system for another 1,000 years.

This was the last flight of SpaceX’s V2 Starship design. Version 3 arrives next year.

Another round of terminations, combined with previous layoffs and departures, has reduced the Centers for Disease Control and Prevention workforce by about 3,000 people since January.

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a very different structure than comets in the solar system.

If you stayed awake in science class as a kid, the payoff comes when you get a good laugh out of Freya McGhee’s jokes.

Previously undetected organic compounds have been found in ice ejected into space from Enceladus, making the satellite a prime candidate for further research.

A canonical problem in computer science is to find the shortest route to every point in a network. A new approach beats the classic algorithm taught in textbooks.

The country’s grid operator says shifting from coal to clean power is not only possible but inevitable. The work there could provide a road map for other countries.

The EU’s Global Gateway plan is challenging China’s Belt and Road Initiative to influence Africa, by providing funding that will expand access to electricity.

The CDC no longer broadly recommends the Covid-19 vaccine, but US residents will still be able to get one if they want.

Fred Ramsdell was on vacation in the Wyoming wilderness when he and two colleagues received the honor for their breakthroughs in immunology.

A Facebook group set up to share information about leucovorin has been spammed by affiliate links and supplement companies trying to shame parents of autistic kids.

Old rocket parts and decommissioned satellites are whizzing around in low Earth orbit, where they risk colliding with the ever-growing constellations of modern satellites being launched.

Thinking about science and technology in terms of return on investment misses the point. Here’s what kids really need to know.

Research reveals that those diagnosed with autism early show distinct genetic and developmental profiles from those diagnosed later.

New studies of the “platypus of materials” help explain how their atoms arrange themselves into orderly, but nonrepeating, patterns.

Americans are paying more for electricity—and rates will keep rising. But after a period of pain, rates should level off as the benefits of a shift away from fossil fuels begin to be felt.

The country spends like no one else on renewables and has reshaped the global market. Is it enough?

The gravitational lensing that causes this rare phenomenon cannot be explained solely by looking at observable objects—suggesting that dark matter had a hand in its formation.

Scientists have a lot of questions about our planet’s most important carbon sink—and a new project could help answer them.

The Amazon founder’s space company will transport NASA's VIPER rover to the lunar south pole—if it proves capable of delivering a payload to the moon in an upcoming mission.

California-based Cognixion is launching a clinical trial to allow paralyzed patients with speech disorders the ability to communicate without an invasive brain implant.

With the agency no longer collecting emissions data from polluting companies, attention is turning to whether climate NGOs have the tools—and legal right—to fulfill this EPA function.

This long-lasting meteor shower peaks in late October and is known for producing bright “fireball” shooting stars. Here’s what to know about Orionids and other major showers that will appear in 2025.