Voyager 1 has been exploring the cosmos for decades, but when it reached the edge of the solar system, it found something very strange and very hot.

Astronomers are abuzz with the discovery of a rogue planet, 2MASS J05325346+0919037, which is set to pass within 0.05 ...

Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a ...

For the first time, astronomers have witnessed the early stages of planet formation around a distant young star, HOPS-315, ...

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be ...

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

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

Interstellar comet 3I/ATLAS — just the third such object ever confirmed to have entered our solar system — flew past Mars ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

Just weeks after Sierra Space Corp. publicly launched operations at a manufacturing facility in Centennial, the aerospace company says it is opening another plant in Broomfield, this factory ...