He highlighted several other features he considers unlikely for a natural object, including the comet's trajectory . Loeb ...

New images taken with the Gemini North telescope in Hawaii confirm that the interstellar comet 3I/ATLAS has gotten brighter ...

The 84-foot-diameter space rock—dubbed "2025 XM"—is hurtling through the solar system at a zippy 9,753 miles per hour.

TRAPPIST-1e, an Earth-sized world in the system’s habitable zone, is drawing scientific attention as researchers hunt for ...

Interstellar object 3I/ATLAS is making its closest approach to Earth in just over a week from now, coming within 167 million ...

New images taken by the Hubble Space Telescope and a Jupiter-bound mission showcase interstellar comet 3I/ATLAS ahead of its ...

Researchers using NASA's James Webb Space Telescope have detected the strongest evidence yet for an atmosphere on a rocky ...

When the early Earth’s magma ocean crystallized 4.4 billion years ago, the deep mantle trapped an ocean’s worth of water, ...

The moon's surface may be more than just a dusty, barren landscape. Over billions of years, tiny particles from Earth's ...

Using the XRISM space telescope, scientists spotted faint emissions of the elements in remnants of the Cassiopeia A supernova ...

Comets are not the only celestial bodies with tails. Earth and Mercury also possess them, formed by different mechanisms.

The 15-year effort by Japan is a model for countries now scrambling to reduce their dependence on Beijing’s critical metals.