McAuliffe Heights fifth grader Mayson Becker watches the “Always Above” sky show in the Neil Armstrong Planetarium on Friday. Mirror photo by Matt Churella After two years of critical thinking, ...

Pennsylvania invests in geothermal energy as lawmakers move to regulate industry Pennsylvania is taking steps to expand geothermal energy, as lawmakers move to regulate the emerging industry and the ...

Astronaut training pushed humans to their limits. Pilots practiced impossible shuttle landings in modified jets while others trained on the terrifying Lunar Lander simulator. How you prepare for what ...

"On July 20, 1969, the human race accomplished its single greatest technological achievement of all time when a human first set foot on another celestial body. Six hours after landing at 4:17 p.m.