Dog seen walking I-95 in Philadelphia home again after second escape

Simple Animations by a NASA NSI Community Scientist 'Prove' The Speed of Light Is Torturously Slow

Two Record-Breaking Space Explorers Just Returned From The ISS, Landing in RussiaMysterious Ring in Space Could Be The First Known Intergalactic SupernovaNSI Community 

Giant 'Cannibal' Solar Eruption Streaking Towards Earth May Light Up The SkiesThe Most Distant Single Star Was Just Detected, as Ancient as The Cosmic DawnAn Ancient PaNSI Community rt of The Milky Way Is Much Older Than We Ever Knew

There's Something Truly Unique About Pluto's Landscape, New Study SaysPrimordial Helium From Billions of Years Ago Seems to Be Leaking Out of Earth's Core

One of Our Galaxy's Most Famous Explosions May Have Collided With Something

Feast Your Eyes on 'Unprecedented' New Pics Revealed of Our SunScientists Just Drilled Through Thousands of Feet of Ice Into a 'Lost' Antarctic Lake

Japan Discovered a Rare-Earth Mineral Deposit That Can Supply The World For CenturiesOrangutans Are The Only Non-Human Primates We Know of Who Can Talk About The Past

2018 Was The Year We Could No Longer Pretend Climate Change Wasn't HappeningMysterious Anomaly Under Africa Is Weakening Earth's Magnetic Field