A newly discovered object speeding through our solar system could be something far stranger than a comet, possibly even alien ...

Stars are the fundamental building blocks of our universe. Most stars host planets, like our sun hosts our solar system, and ...

Mars gets lost as it sinks deep into the sun’s afterglow. Meanwhile, Jupiter climbs above the predawn eastern horizon to join brilliant Venus.

Our galaxy will make for a particularly splendid sight on the dark nights surrounding the new moon phase on July 24.

An ‘interstellar visitor’ spotted drifting into our solar system weeks ago is either a massive dirty snowball or an alien ...

The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

The stage is set for one of the greatest sun events of 2023, if not the greatest skywatching event of the year! We are ...

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our understanding of how planets take shape — not only in our solar system, but ...

Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

Answer 17: A meteoroid is a small rocky or metallic body in space. A meteor is the streak of light produced when a meteoroid enters Earth’s atmosphere. A meteorite is a meteoroid that survives passage ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...

A team of international astronomers, including a University of Michigan doctoral student, were the first to publish the ...