Science

A new possibility has arisen for giant black hole formation: Massive gas clouds in a galaxy may be able to collapse directly into a black ...

This month marks the 40th anniversary of the landing of the Viking spacecraft on Mars back in 1976. There were two landers about the size ...

As the messy process of democracy plays out in Philadelphia this week, some civic tech startups are showing off tools aimed at cleaning u ...

Sentient creatures on planets orbiting two stars enjoy a different perspective of the heavens above. Now astronomers have sighted a three ...

Commuters, and maybe a few visiting delegates, will get a sneak preview of SEPTA’s new electric buses during the Democratic Nationa ...

The Moon slides past Mars and Saturn this week – Mars on Wednesday and Saturn on Friday . . . If you can see the moon you can fin ...

The fourth of July offers out-of-doors celebrants an opportunity to enjoy fireworks at nightfall, and then nature’s pyrotechnics u ...

Thanks to dark, dark skies; Northern Chile currently houses 50% of the world’s light gathering capacity, soon to be 70% – tha ...

If you are sitting there thinking, I live in South Philly (or South Jersey, or Wilmington). What does the “Brexit” have to do ...

Enjoy the final few minutes of Spring, Summer solstice begins in … just a few minutes! Also full moon today. ...

Pioneer 10 left the solar system – 33 years ago today. Traveling at 28,000 mph, the NASA spacecraft will pass the bright star of th ...

New studies of possible Planet Nine suggest it came from outer space – captured from one of our sun’s sibling stars not long ...

This piece is part of our “Bodies” show. Take a look at the rest of our stories here. ...

Thousands of people donate their bodies to science each year, to be dissected by wide-eyed med students during their first-year anatomy c ...

Mars is at its closest approach to Earth for this year. Surprisingly there are no rumors this time around about Mars appearing as large a ...