Ars Technica - Science

Impacts that vaporize bits of the lunar surface maintain the Moon’s thin atmosphere.

Analysis of ruthenium isotopes showed the impactor was a carbonaceous-type asteroid.

“We don’t have enough insight and data to make some sort of simple black-and-white calculation.”…

The declaration is “the highest level of alarm under international health law.”…

Wind tunnel experiments show how the ball’s transverse spin impacts pressure fields.

High-ridged denticles reduce drag at low speeds; alternating ridges do so at high speeds.

Three Starliner mission managers had key roles on Columbia’s ill-fated final flight.

We're standing by for news on NASA's decision on what to do about Orion's heat shield.

2024 is seeing the inevitable outcome of the building boom in solar farms.

"These spots are a big surprise."

“I’m someone who wants to actually succeed from a business perspective."

"All works of fiction in my mind have their own rules and their own internal physics."

Chandra almost didn't make it to orbit on a dramatic launch of space shuttle Columbia 25 years ago.

Six times bigger than Jupiter, the planet is the oldest and coldest yet imaged.

Hospitalizations also still rising, with tally at 38.

The woman realized how serious her infection was once she was in custody.

Another team built a lithium-ion battery with electrolyte layer that expands by 5,000%.

Bizarre design uses a solar-powered motor that's optimized for weight.

When processing language, individual neurons respond to words with similar meanings.

Two male skeletons showed signs of severe fracture and trauma injuries.

"It would have been revolutionary. Other missions don’t replace what is lost here."

In large study, rates of long COVID fell from 10% to 3.5% for the vaccinated.

Rocket Factory Augsburg completed qualification of its upper stage for a first launch this year.

Coal-filled trains trail a cloud of particulates shaken free from their cargo.

New testing finds psilocin, related to psilocybin, in gummies purchased in 2023.

"It will miss the Earth. It will miss the Earth. It will miss the Earth."

The density makes it look like a water world, but its dim host star keeps it cool.

Though carbon removal startups may limit global warming, significant questions remain.

The military and NASA seem serious about building demonstration hardware.

SpaceX is waiting for a determination from the FAA.

Google/academic project is great with weather, has some limits for climate.

Seven cases have been reported in Colorado this month, bringing the total to 11.

ULA looks to have a good shot at making its Vulcan rocket operational this year.

NASA wants a "robust" commercial space community. But it has a long way to go.

The EPA's plan to cut carbon emissions from power plants can go ahead.

There were distinct patterns of cut marks, bone breakage in cooked vs. uncooked birds.