Mercury is the smallest planet in our solar system. Explore its size, extreme temperatures, core structure, and comparison with Pluto.

A fresh analysis of Comet 41P/Tuttle-Giacobini-Kresák observations suggests it abruptly reversed its spin after its last Earth flyby—an extreme and unprecedented change.

Everyday lifestyle choices can add up to significant climate impact when even a small share of the population makes them.

The District 1 girls basketball playoffs have arrived and several Delaware County teams are vying for championship hardware.

Scientists have captured the moment a supergiant star collapses into a black hole, revealing the star's death in an ...

Stand beneath giant roadside wonders in this small Illinois town, where mailbox lookouts, sky-high chairs, and playful photo ...

A massive yellow clock popped up on Pittsburgh’s North Shore this fall, featuring a countdown to the 2026 NFL Draft on April ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

A boxwood alternative that blooms, a willow with silvery foliage, and another slew of new-twist hydrangeas are among the most interesting trees and shrubs debuting in the 2026 growing season. Growers, ...

Thieneman would fill a need in Chicago’s back end, with safeties Jaquan Brisker and Kevin Byard expected to hit free agency.

ESPN's Field Yates predicts the Cardinals to take a top offensive tackle prospect at No. 3 while two Sun Devils go Day 1 in his first mock draft.

More than a dozen Baltimore nonprofits that have received or are slated to receive nearly $60 million to address the opioid ...