Chrysalis, a 36-mile rotating space habitat, plans to take 2,400 people to Alpha Centauri in approximately 400 years.

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.

The map, spanning 4,000 light-years from the sun in all directions, combines a chart of space dust with the effects of a rare type of young, hot star.

NASA is set to launch three spacecrafts Tuesday with the goal of unlocking the mysteries of solar weather at the edge of our solar system.

"The complexity of the exo-Neptunian landscape provides offers a unique window onto the processes involved in the formation ...

MSU uncovered images of 3I/ATLAS from two months before it was detected as an interstellar object. These images indicate that the comet was active further from the sun than expected, indicating that ...

3I Atlas is a newly discovered interstellar comet traveling through our solar system at a record breaking speed of about 209,000 km/h, making it the fastest of its kind ever observed. Unlike comets ...

Astronomers have been racing to get a better look at 3I/ATLAS, a mysterious object screaming into our solar system from far beyond. Now, as the BBC reports, new observations by the Gemini South ...

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...

A long-dormant coal mine waste site in Pennsylvania has new life, providing solar power to the local community thanks to a groundbreaking tracking system enabling installation across challenging ...