Famed scientist Avi Loeb is investigating the newly found quasi-moon 2025 PN7, questioning if it is an artificial alien probe ...

Astronomers have identified 3I/ATLAS, an ancient, ice-rich interstellar comet potentially older than our solar system.

Three interstellar objects; ʻOumuamua, 2I/Borisov, and 3I/ATLAS—have passed through the Solar System. This article details ...

Two million years ago, an encounter with a cold cloud of gas and dust could have caused our planet's "protective giant bubble" to draw back, potentially cooling our planet, new research claims. When ...

It might seem like an implausible connection, but interstellar comets and big dreams occupy similar positions in their ...

Many scientists call Jupiter the architect of the solar system because its immense gravity influenced the orbits of other planets and carved up the gas and dust from which they all emerged. This ...

Earth may have been exposed to interstellar clouds which may have changed the chemistry of the planet's atmosphere and led to the development of multiple ice ages, researchers suggest. Astrophysicists ...

The intensity of the Sun’s activity ebbs and flows across years, but also across decades—a behavior that scientists haven’t quite figured out yet. At the turn of the 21 st century, astrophysicists ...