NASA's Chandra telescope uses 'X-arithmetic' to reveal how black holes shape galaxy clusters (images)

A mysterious X-ray signal detected from deep space may indicate a star being torn apart by two black holes in succession. This phenomenon, observed over several decades, suggests complex interactions between celestial bodies in extreme environments.

NASA astronaut Jonny Kim has returned to Earth after an extensive eight-month mission aboard the International Space Station (ISS), during which he completed 3,920 orbits around the planet. This mission concluded on December 9, 2025, marking a significant achievement in his career and contributions to space exploration.

NASA has lost contact with its MAVEN Mars orbiter while it was on the far side of the Red Planet. The communication link was abruptly severed, raising concerns about the status of the spacecraft, which had been operational for over a decade prior to this incident.

NASA's MAVEN spacecraft failed to establish communication as expected on December 6, raising concerns about the status of this critical Mars orbiter. The loss of signal could hinder ongoing research into the Martian atmosphere and climate.

NASA's Perseverance rover has successfully collected significant samples from Mars, yet the mission to return these samples to Earth is encountering substantial obstacles that could delay or complicate the process.

NASA's Perseverance rover has captured audio evidence of lightning-like discharges in the thin atmosphere of Mars, marking a significant advancement in understanding the planet's atmospheric phenomena. This discovery allows scientists to hear dust devils crackling with electricity, providing new insights into Martian weather patterns.

Astronomers using NASA's James Webb Space Telescope (JWST) have identified the most ancient supernova ever observed, dating back to a time when the universe was less than a billion years old. This discovery marks a significant milestone in understanding the early universe and the formation of celestial bodies.

NASA astronaut Jonny Kim and Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky successfully landed on Earth aboard the Soyuz MS-27 on December 9, 2025, concluding a 245-day mission at the International Space Station (ISS). This return marks the end of their extensive scientific research and collaboration in orbit.