Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

Bill McKinnon shares his story of a career spent studying the geology and geophysics of icy worlds beyond our own. McKinnon, ...

Just a few weeks ago, we crossed the significant milestone of 6,000 known exoplanets. The counter keeps getting higher, and there are 8,000 more candidates waiting for confirmation. In the decades ...

A newly discovered warp in the outer Solar System may have been created by a small, rocky world, much closer to the Sun than ...

A new study sheds light on how planets, including Earth, formed in our galaxy and why the life and death of nearby stars are ...

COON RAPIDS - Participants in the Iowa Star Party don't want to keep the wonders of the night sky to themselves. They are ...

Solving a lunar mystery? Scientist at the University of Arizona is the lead author on research proposing a new theory for the ...

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

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

Even astronomers who study peculiar outer space objects have their favorites. Here are some interstellar bodies that have won ...

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a ...