Oregon stargazers have plenty of reasons to look up in August – a month marked by meteor showers, planetary conjunctions, and ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS.

On the subject of Comet 3I's unnaturalness, Harvard physicist Avi Loeb has admitted to having concerns about the discovery in ...

The 3I/ATLAS, which was first spotted on July 1, has the fastest velocity of any solar system visitor to date, NASA says. The ...

Our sun is about five times less magnetically active than other sunlike stars—effectively a special case. The reason for this ...

Is it an alien spaceship or an ancient comet? That’s the question puzzling UFO enthusiasts, NASA, and the European Space Agency since an interstellar visitor entered our solar system last ...

The annual Perseids Meteor Shower will peak Tuesday night and early Wednesday morning. However, the Waning Gibbous moon will ...

From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order ...

Hubble telescope captures third interstellar visitor 3I/ATLAS showing active dust coma racing through solar system.

Lunar Trailblazer was set to map the Moon’s water in unprecedented detail but was lost after a communications failure soon ...

Venus and Jupiter, the brightest planets in our solar system, are about to make their closest approach during their August conjunction.