NASA's Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) was built for the ambitious purpose of performing an all-sky survey. The data it collects ...

A vast underground tunnel known as a lava tube, formed from ancient volcanic activity, was recently discovered lurking beneath Venus.

Scientists have long known that Earth's core is mostly made of iron, but the density is not high enough for it to be pure ...

NASA’s SPHEREx telescope observed a dramatic outburst from interstellar comet 3I/ATLAS after its October 2025 solar flyby. Infrared data revealed water vapor, carbon dioxide, methanol, methane, and ...

Amino acids from asteroid Bennu suggest that some of life’s building blocks formed in icy conditions in the early solar system.

As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

The MAPS Comet is expected to reach perihelion in early April, passing only 99,600 miles (160,200 km) above the surface of the sun (photosphere). To survive such a close approach, the comet needs to ...

Where did Earth’s water come from? This has been a topic of debate among scientists for a very long time, and we might finally be close to an actual answer. In a new study published in Nature ...

Proof-of-principle experiment resolved the shock waves produced by the Shenzhou-15 module when it re-entered the atmosphere ...

The fate of a comet that was predicted to pass close to Earth remains a mystery five years after its dramatic breakup in the inner solar system.

As 3I/ATLAS passed through the inner solar system, the brightest images or the longest spectra were not the most significant measurements that the comet was to make, but the tiniest variations in ...