Astronomers have discovered 2017 OF21, a distant dwarf planet candidate located about 90 times farther from the Sun than Earth, making it more than twice as far as Pluto. With a highly elongated orbit ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered two new exoplanets around a young sun-like star known as TOI-6109. The newfound alien worlds are slightly larger ...

Scientists have discovered methane gas on the dwarf planet Makemake, a finding that has surprised astronomers studying the outer solar system.

Saturn is known for its iconic rings, but it should also probably be known for its moons. The ringed world was already the record holder for the most natural satellites of any planet in the Solar ...

It wasn’t until the ‘90s that our astronomical powers advanced enough to confirm the existence of worlds around other stars. Since that very first discovery, more than 6,000 exoplanets have been ...

For decades, Uranus baffled scientists because it seemed to have no internal heat. Now, new computer modeling shows the planet actually emits more energy than it receives from the Sun. This subtle ...

Perseverance rover data shows Jezero Crater once held a calm lake, leaving behind mudstones rich in organic-linked minerals. The presence of iron-phosphate and iron-sulfide nodules suggests processes ...

The striking thing about this is that repeating the procedure on the star turned up no evidence of carbon-based chemicals, even though the system is young enough that it should still have a ...

Mercury is tiny, barely bigger than the Moon. Its metallic core makes up 70% of the planet’s mass, vastly exceeding Earth’s 32% and Mars ’ 25%. It’s unlikely that the core actually formed like this.

For researchers at the University of Idaho, spotting a moon 6 miles wide orbiting Uranus, a staggering 1.8 billion miles from Earth, may actually be easier than finding a white cat in a snowstorm.

For researchers at the University of Idaho, spotting a moon 6 miles wide orbiting Uranus, a staggering 1.8 billion miles from Earth, may actually be easier than finding a white cat in a snowstorm. A t ...

The asteroid belt is found orbiting between Mars and Jupiter and is a vast collection of rocks that is thought to be a planet that never formed.