There's no shortage of round celestial objects in our universe. Planets, moons and stars all exhibit lovely spherical shapes.

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

MISTRAL is a new-generation receiver for observations at millimeter wavelengths, built as part of the recent project to upgrade the Sardinia Radio Telescope for the study of the high-frequency radio ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system's outer reaches.

NASA's Perseverance rover is exploring a new Mars region called Krokodillen, which is thought to harbor some of the oldest and most intriguing rocks on the Red Planet.

A massive barred spiral galaxy from the early Universe has stunned astronomers by forming stars at 300 times the rate of the ...

Learn how a possible ninth planet, the theoretical Planet X, could have acquired its wide orbit in the outer Solar System — a ...

Tyson appears at the Luther Burbank Center on June 5 in a show called “An Astrophysicist Goes to the Movies, Part II” billed ...

Astronomers have just discovered a new celestial body in our solar system that could challenge major space theory. 2017 OF201 ...

Quarks unexpectedly breaking symmetry in a recent experiment may transform our fundamental understanding of matter and the ...

Even within our own solar system, distances are enormous. NASA astrophysicist Dr. Amber Straughn explains that driving a car ...

The universe's vastness challenges human comprehension. It contains trillions of galaxies and countless stars. Pluto's ...