Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields from the Big Bang may offer a solution.

Mission Highlight: Crew-12 NASA and SpaceX are targeting Wednesday, Feb. 11, at 5:38 a.m. EST for the launch of the Crew-12 ...

Planned launch of 500,000 satellites could spoil about one in three Hubble images, even when the telescope stays above Earth's weather.

Deep inside a nearby galaxy, a black hole sits behind a thick wall of dust. Almost all its light gets trapped. Yet the chemistry inside that buried core still leaves tracks you can read, if you look ...

Merger of two neutron stars in the aftermath of a supernova may have been observed for the first time, though questions ...

Using an advanced machine-learning algorithm, researchers in the UK and Japan have identified several promising candidate locations for the long-lost landing site of the Soviet Luna 9 spacecraft.

Volcanic activity is not unique to Earth: traces of volcanic activity, such as lava tubes, have been found on Mars and the moon. Now, the University of Trento has demonstrated the existence of an ...

NASA engineers replaced seals and updated procedures after Artemis II wet dress rehearsal to address hydrogen leaks and improve fueling operations ahead of the next test.

Evidence of volcanic activity on Venus has been confirmed for the first time. An empty lava tube beneath the planet’s surface ...

With new technology, smarter tools, and a lot of patient digging, historians and archaeologists are uncovering marvels from every corner of the world. One day it’s an enormous thigh bone from a ...

With new technology, smarter tools, and a lot of patient digging, historians and archaeologists are uncovering marvels from every corner of the world. One day it’s an enormous thigh bone from a ...

The International Security and Arms Control (CISAC) is a permanent committee to bring the resources of the Academy to bear on ...