XMM-Newton observed the comet with its European Photon Imaging Camera (EPIC)-pn camera, its most sensitive X-ray camera ...

Interstellar comet 3I/ATLAS shows a growing green glow and new X-ray activity as scientists study changes in its chemistry during its rare passage through the Solar System ...

New evidence shows that, far beyond Pluto, there may exist a hypothetical planet referred to as Planet X or Planet Nine.

MIDLAND, Texas (AP) — Retired Chinese official Li Chuanliang was recuperating from cancer on a Korean resort island when he ...

TPD confirmed during a recent City Commission meeting that it has deployed Flock cameras across town. The cameras have raised ...

A rocky exoplanet outside the Earth's solar system may have an atmosphere, according to new evidence gathered by NASA ...

Scientists reveal why time moves faster on Mars than on Earth, and how this affects future space communication and navigation ...

The arrival of interstellar comet 3I/ATLAS in the inner Solar System in late 2025 sparked a burst of scientific observation-and a parallel surge of online claims that U.S. authorities had quietly ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's ...

Fresh simulations show there is a chance Uranus and Neptune might actually be rock-rich worlds wrapped in thinner icy layers.

In theory, leaner NASA oversight, greater use of off‑the‑shelf hardware and narrower science goals can cut costs while ...

NASA has lost contact with its MAVEN spacecraft that has been orbiting Mars for more than a decade. Here's what we know.