NASA chief Jared Isaacman’s call to restore Pluto’s planetary status has reignited a long-running scientific debate over whether the icy world was unfairly demoted from the solar system’s official ...

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be confused for Mars. The alluvial basin is full of tan and gray regolith, hued ...

Comet 3I/ATLAS, the third confirmed interstellar object ever detected passing through our solar system, was caught shedding dust in a dramatic teardrop-shaped cocoon as it traveled through the inner ...

"It's going to look different because it didn't come from our solar system and that's what makes it so magical." When you purchase through links on our site, we may earn an affiliate commission.

Voyager 1, launched in 1977, has traveled farther than any spacecraft in human history. After more than four decades of silent endurance through space, it now sails beyond the orbit of the outer ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the third known interstellar comet ever spotted. When scientists turned NASA’s ...