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Space Exploration 2 hours ago

NASA watchdog report: 100+ cracks on heat shield biggest threat to human moon mission

The damage to the Orion capsule from the Artemis I mission is already top of mind for NASA as it works to make the Artemis II mission safe for humans. But a new agency report has revealed the extent of the problem, including ...

Planetary Sciences 4 hours ago

TESS discovers a rocky planet that glows with molten lava as it's squeezed by its neighbors

UC Riverside astrophysicist Stephen Kane had to double-check his calculations. He wasn't sure the planet he was studying could be as extreme as it seemed.

Planetary Sciences 4 hours ago

Q&A: AI in Earth observation—a force for good

The upcoming launch of the Φsat-2 mission is a prime example of the pioneering work that ESA does in the field of AI in Earth observation.

Astronomy 5 hours ago

Where space weather starts: Self-consistent propagation of flux ropes in realistic coronal simulations

The effects of space weather extend out across our entire solar system, but this is a simulation of where everything starts: the sudden, violent, emergence of a "flux rope" out of the sun's magnetic field and into the solar ...

Superconductivity 5 hours ago

Quantum breakthrough sheds light on perplexing high-temperature superconductors

Superfast levitating trains, long-range lossless power transmission, faster MRI machines—all these fantastical technological advances could be in our grasp if we could just make a material that transmits electricity without ...

Astrobiology 6 hours ago

Looking for life on Enceladus: What questions should we ask?

Does life exist beyond Earth? One of the most compelling places to consider this possibility is Enceladus, a moon of Saturn with a liquid water ocean encased in a frozen shell. There, plumes of water spray from ice fractures ...

Astronomy 6 hours ago

NASA images help explain eating habits of massive black hole

In images from NASA's retired Spitzer Space Telescope, streams of dust thousands of light-years long flow toward the supermassive black hole at the heart of the Andromeda galaxy. It turns out these streams can help explain ...

Optics & Photonics 6 hours ago

Study demonstrates fast photoionization detection of single erbium ions in silicon

Efficient detection of single optical centers is crucial for applications in quantum computing, sensing, and single-photon generation. For example, nitrogen-vacancy (NV) centers in diamond have made breakthroughs in high-precision ...

Planetary Sciences 7 hours ago

Image: Sulaiman mountain haze

An astronaut aboard the International Space Station took this Dec. 17, 2023, photograph of the Sulaiman Mountains in central Pakistan. The Sulaiman Mountains form a natural barrier between the plateaus to the west and the ...

Paleontology & Fossils 8 hours ago

Fossilized circles in the sand on South Africa's coast may be artwork by our early ancestors

If you have walked on a dune surface after windy conditions have settled, you may have been privileged to recognize one of Nature's wonders: scratch circles. These are structures formed when the end of a tethered object is ...

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