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.

(NewsNation) — In just a matter of days, the interstellar comet known as 3I/ATLAS is expected to pass closest to the sun between the orbits of Mars and Earth. New data from the International Gemini ...

We could be overlooking an entire population of asteroids that pose a threat to Earth on the very simple basis that they're extremely hard to see. In the space shared by the orbit of Venus, hundreds ...

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 ...

What new methods can be employed to help astronomers distinguish the light from an exoplanet and its host star so the former's atmosphere can be better explored? This is what a recent study accepted ...

The NASA/ESA/CSA James Webb Space Telescope has provided the first direct measurements of the chemical and physical properties of a potential moon-forming disk encircling a large exoplanet. The carbon ...

A new study warns of an undiscovered population of asteroids that could strike Earth with little to no warning.

In our own solar system, there are pretty good odds that you could stand on the surface of an asteroid and not even be able to see another one! Today we know of more than a million asteroids in the ...

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 ...

Asteroid ‘Families’ Reveal Hidden Histories and Impact Risks across the Solar System ...

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.

NASA’s exoplanet tally has climbed to 6,000, revealing bizarre and beautiful worlds far stranger than our own.