PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar ...

For obvious reasons, the Sun’s influence weakens as you get closer to the edge of the solar system. But things might be a lot ...

NASA's New Horizons found the solar wind slows as it nears interstellar space, helping improve models of the solar system's ...

Interstellar comet 3I/ATLAS, the third object ever confirmed to have originated beyond our solar system, is heading back into deep space on a trajectory that will carry it away from the Sun ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists have just discovered a rare interstellar object hurtling ...

A rare visitor from beyond the solar system has just been found streaking through our cosmic neighborhood. On July 1, 2025, the NASA-funded Asteroid Terrestrial-impact Last Alert System (ATLAS) ...

The data obtained by Webb had two things that took researchers by surprise.

Solar sails are an exciting way to travel through the solar system because they get their propulsion from the sun. NASA has developed several solar sails, and their newest, the Advanced Composite ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Voyager 1, which has traveled further from Earth than any other ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...