Oumuamua and Comet Borisov in 2017 and 2019, respectively, created a surge of interest. What were they? Where did they come ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

She has covered weird animal behavior, space news and the impacts of climate ... than Earth's mass—may have swept through our solar system about 4 billion years in the past.

The same molecular signatures in cold clouds and asteroid samples point to a direct inheritance of material from interstellar ...

"The lightsail will travel faster than any previous spacecraft, with potential to eventually open interstellar distances ... Initiative's vision of laser-driven space travel.

An interstellar visitor may have warped the solar system billions of years ago, a new study has claimed. Scientists suggested the enormous object disrupted the orbits of Jupiter, Saturn ...

Astronomers predict it will leave our solar system in Jan. 2019. Making its way into deep space toward the constellation Pegasus. It may be the first interstellar visitor, but the bigger question ...

The problem, explained Hajduková's team, is that this imprecision can make meteors native to our solar system seem as though ...

Powered by laser light, this tiny sail lays the groundwork for future advances in lightsail technology and the potential for ...

Conduct more detailed simulations to refine the characteristics of the interstellar object and its encounter with the solar system. Search for observational evidence of such past encounters in the ...

A new study suggests that a planet-sized object may have passed through the solar system billions of years ago. Its journey could have permanently altered the orbits of the outer planets.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar ... Breaking space news, the latest updates ...