An interstellar comet is set to appear in the skies. A comet named 3I/ATLAS would be closest in its journey to our Sun on October 30, when it will be around 130 million miles from the center of our ...

Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our own solar system? While distant galaxies reveal clear signs of something ...

The fate of our solar system is written in the stars—well, one star to be precise: the sun. Estimates of what the end will look like once the sun sheds much of its mass and ultimately dies vary widely ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

A mysterious comet from beyond our solar system is giving astronomers a rare glimpse into alien worlds — and it may have formed in a place far colder and stranger than anything around our Sun. The ...