After decades of exploring, NASA's Voyager 1 hit the edge of the solar system and passed through a great "wall of fire," ...

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...

It will be a while before you can see it for yourself, however. Halley’s comet was last visible from Earth in 1986, meaning ...

Space weather isn’t referring to rain clouds that float through the galaxy. Instead, it’s caused by massive explosions of ...

In a rare astronomical event, comet 3I/ATLAS, an interstellar visitor, is passing through our solar system in 2025. Traveling at an astonishing speed of 130,000 mph (219,000 ... Observations from ...

A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien technology, a scientist claims in a new report.

At the edge of the heliosphere, the solar wind runs up against the interstellar medium, the gas, dust, and radiation in the ...

At the time, astronomer Jerry Ehman spotted the highly unusual outburst in printed out records, annotating the major radio band fluctuation with the word “Wow!” in red pen, thereby giving it a ...

The rare Comet 3I/ATLAS rocketing through the solar system at 61 km per second poses no threat to Earth, according to the US ...

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 ...

The discovery of ancient water in a planet-forming disk reveals that some of the water found in comets—and maybe even ...