Science

MAVEN (Mars Atmosphere and Volatile Evolution) spacecraft data shows that the primary reason the Martian atmosphere is gone is the activi ...

The Cassini Saturn orbiter (which launched from Earth in 1997) took a close pass by the intriguing moon Enceladus last Wednesday. The obj ...

This is Halloween weekend — which means spooky creatures dressing up in costume, creeping around the neighborhood, and trick-or-treatin ...

It has been a bad year for Philadelphia taxi drivers. Since ride-sharing company Uber launched in the city last October, the numbe ...

Set clocks back one hour at 2:00 a.m. Sunday, the first Sunday in November. Heading towards the earliest sunset on Friday, December 4th. ...

In collaboration with tonight’s White House Star Party, Philadelphia is sponsoring an observing event this evening at Thomas Paine ...

A newly discovered earth-like planet a mere 21 light years away zips around it’s orange dwarf sun in a mere three days. Kepler 452b ...

A look at efforts to, and benefits of, limiting light pollution. Plus, a listing of treats to be seen in the night sky this week. ...

Steve Case got the kind of introduction you could only get in this city, this week. “A welcome to the pope of entrepreneursh ...

Scientists are now certain that the 313 mile diameter moon of Saturn, Enceladus, has a liquid water ocean that completely envelops its ro ...

The closed roads in and around Philadelphia will make getting to a doctor something of an obstacle course this weekend. So one hospital i ...

Autumn officially arrives Wednesday; at 4:21 am, Earth arrives at that point in its orbit where the rotational axis is in a position that ...

The target demographic for technology companies felt decidedly gray for a while Thursday. Entrepreneurs mingled with assisted-livi ...

This is the last week of summer. Autumn arrives next Wednesday. NASA’s New Horizons is en route to a 35 mile-wide iceball on ...

Islands on Pennsylvania’s waterways are often overlooked, difficult to access or seen as liabilities, but some people are trying to change that.