A mystery interstellar object discovered last week is likely to be the oldest comet ever seen – possibly predating our solar system by more than three billion years, researchers say. The "water ...

However, new research has shown this potentially "water ice-rich" visitor could be even more extraordinary than initially ...

3 of Pa.’s largest employers urge: Fund SEPTA and other mass transit now Depriving public transit of needed resources will have economic impacts throughout the commonwealth, write the leaders of Penn, ...

SEPTA's board approved a new budget proposal that called for fare increases and cuts to some services.

Watch how Comet C/2024 S1 (ATLAS) met its demise after traveling close to the sun. Imagers aboard the Solar and Heliospheric Observatory (SOHO) captured the its fateful dive.

SEPTA approved a 2026 fiscal year operating budget that will halve service to Delaware within six months and eventually eliminate the Wilmington/Newark Line. Without additional state funding ...

The Southeastern Pennsylvania Transportation Authority (SEPTA) has awarded Intersection a nine-year contract to sell static and digital advertising for the agency. SEPTA and Intersection have been ...

Police are asking for the public’s help in identifying a young man who wounded a teenage girl in a shooting at SEPTA's Broad St. Line station.

The solar system has a new headline act, and it’s no dainty sky spark. Comet C/2014 UN271 (Bernardinelli-Bernstein), a frosty rock roughly 85 miles wide, is drifting inward from the Oort Cloudlike a ...