Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? Researchers show that this is not due to the random pull of the planets, but rather the ...

NEW YORK (AP) — A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday ...

"Every new result can reshape our understanding of planets, their habitability, and our place in this universe." ...

Our solar system was formed about four and a half billion years ago, from a massive cloud of gas and dust which collapsed on ...

In late 2017, a mysterious object tore through our solar system at breakneck speed. Astronomers scrambled to observe the fast ...

Webb Telescope Captures Its First Direct Images of Carbon Dioxide Outside Solar System Mar. 17, 2025 — The James Webb Space Telescope has captured its first direct images of carbon dioxide in a ...

A Southwest Research Institute-led study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, ...

"What surprised us, at the end, was how effective this type of impact could be in explaining Mercury's unusual structure ...

A new model has been developed to simulate interstellar activity within our solar system and the nearby Alpha Centauri system ...

A planetary scientist explains new research explaining the differing compositions between space rocks that hit Earth and are brought back.