Space

Astronaut tweets aerial photo of Philadelphia from space

Penn researchers helping NASA bid to put man on Mars

Website tracks 2016's reported UFO sightings in region

ufo sightings

Astronaut tweets out picture of Philadelphia from space

2016 will last a little longer thanks to a 'leap second'

NASA delays rocket launch that will be seen from Philadelphia until Monday

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Watch rocket blast across Philadelphia skies on Sunday

Meteor lights up night sky over Pennsylvania, New Jersey

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Franklin Institute to host its first rooftop happy hour and movie event

Ben Franklin statue in the Franklin Institute

IMAGES: Views from the Apollo missions you haven't seen

NASA releases 1,035 stunning new images of Mars

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WATCH LIVE: SpaceX rocket lands after delivering two satellites into orbit

SpaceX Falcon 9

Mercury's on the move: Philly has best viewing spot for rare transit

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Little Baby’s teams up with Philly school kids to send ice cream to space

Little Baby's and Workshop School put ice cream in space

WATCH: New Jersey pilot captures glimpse of shooting star

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NASA reveals discovery of icebergs on Pluto

020416_Plutoicebergs

Astronaut Scott Kelly captures 'thundersnow' as Jonas hits Eastern U.S.

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Astronaut plays water ping pong to celebrate 300th day in space

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Pa. woman selected as NASA flight director for International Space Station

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NASA touts flyby mission to Jupiter's moon Europa as quest for alien life

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Full moon collides with Christmas Day for first time in decades

NASA responds to kid featured in Humans of New York photo

Penn State astronomer leads team to examine anomalous star

NASA gearing up for major Mars announcement

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NASA's Curiosity rover snaps selfies on Mars

Mars

'Dark Lady' spotted in photo from NASA's Curiosity rover

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Japan's Suntory to age whiskey in space

Rare 'blue moon' to occur Friday

Venus, Jupiter to converge in must-see spectacle Tuesday

Space

Swedish art student proposes design for international flag of Earth

Arizona company will take you to the edge of space

Spacecraft

Twitter reacts to the passing of Leonard Nimoy, known as Spock on 'Star Trek'

RIP Spock

Radar system issues scrub SpaceX launch

Asteroid on course to fly near Earth

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1 man dead, 2 missing after parking garage partially collapses

Grays Ferry Collapse

Poison centers are fielding more calls tied to kava use

Kava Poison Centers

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Smith Memorial Playground to collect letters from kids for a time capsule

Smith Playground time capsule

Longwood Gardens kicks off Festival of Fountains on May 8 with daily shows and illuminated nights

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The Flyers are different now. They grew up.

Owen-Tippett-Dan-Vladar-Flyers-Win-4.5.26-NHL.jpg