• December 18, 2014 |  The Pulse

    Comet discovery closes door to theory of origin of Earth's oceans

    Many other doors remain open.
  • December 18, 2014

    Sweltering days, heavy precipitation expected to increase in Philly

    Philadelphia could be in for up to 15 times the annual number of days above 95 degrees by century's end.
  • December 18, 2014 |  The Pulse

    Can activists provide useful scientific data?

    Joanne Martin stands on the muddy bank of Brady Run, a stream in Beaver County in western Pennsylvania. To get there, she crawled down a steep gravel ...
  • December 18, 2014 |  The Pulse

    How repeated losing affects our body chemistry

    The Philadelphia 76ers can't seem to win and the team's losing streak might be affecting the body chemistry of its young would-be stars.
  • December 18, 2014 |  The Pulse

    Tech clay could play a role in powering the next generation of wireless gadgets

    The search for the longer-lasting, faster-charging battery keeps going and going...
  • December 18, 2014

    Congress OKs ABLE Act to give disabled greater financial independence

    Families of disabled children could create tax-free savings accounts of up to $100,000 if President Barack Obama signs bipartisan legislation headed t...
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