A team of astronomers led by Macquarie University has monitored the orbital decay of an extreme exoplanet to gain new ...

An international team of scientists have provided an unprecedented tally of elemental sulfur spread between the stars using ...

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

It takes a supercomputer weeks to output the properties of one stellar binary. A new study shows AI can do it in a fraction ...

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 ...

Scientists are racing to learn as much as possible about the interstellar comet 3I/ATLAS before it fades from view forever ...

Astronomers have just discovered what might be the oldest comet ever seen by humanity—an ancient visitor that predates our solar system by billions of years. This interstellar object, named 3I/ATLAS, ...

Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a ...

REx sample return capsule contained rock from the asteroid Bennu. NASA/Keegan Barber Mary Magnuson, Collecting asteroid samples China’s Tianwen-2 asteroid sample return mission is set to launch this ...

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here ...

Though 3I/ATLAS will never come close to Earth, its passage offers a rare chance to study material beyond our solar system with ground-based and orbital telescopes, before it accelerates back into ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, speeding through our celestial neighborhood.