30 Years Since Challenger: New Voice At Astronauts' MemorialAs families of the lost Challenger astronauts gather with NASA to mark the space shuttle accident's 30th anniversary, there's a new voice to address the crowd.
2015 Was Earth's Hottest Year By Wide MarginLast year wasn't just the Earth's hottest year on record -- it left a century of high temperature marks in the dust. The NOAA and NASA announced Wednesday that 2015 was by far the hottest year in 136 years of record keeping.
How Much Space Junk Is In Orbit?A professor at a university in London has put together an animation to show just how much debris is in orbit around our planet, and it has been happening for almost more than 60 years.
Christmas Delivery: 1st Shipment In Months At Space StationThe International Space Station accepted its first U.S. shipment in more than half a year early Wednesday, receiving Christmas presents and much-needed groceries for the resident astronauts.
NASA's Year-Long Spaceman Takes 2nd SpacewalkNASA's one-year spaceman, Scott Kelly, ventured back outside of the International Space Station on Friday morning for some radiator work. Kelly is more than halfway through a U.S. record-setting flight.
Kelly Takes Spacewalk Before Setting RecordNASA's yearlong spaceman, Scott Kelly, is taking his first spacewalk just hours before setting a new U.S. flight record.
"The Martian" Lands With $55 Million DebutJust days after NASA announced findings showing water on Mars, "The Martian" soaked up at the box office.
NASA Releases Photos Of Pluto's Jumbo MoonPluto's big moon, Charon, is being revealed in all of its rugged glory in the best photos of it ever released.
Astronaut Hits Halfway Point Of Yearlong SpaceflightTo mark the occasion, Scott Kelly took time out to chat with two cast members from the upcoming movie, "The Martian."
Support Pours In For Irving Teen Suspended Over ClockEncouragement poured in from across the nation for a 14-year-old boy whose homemade electronic clock led to his detention and suspension from school, with President Barack Obama, Facebook founder Mark Zuckerberg
Pluto Up Close: Spacecraft Achieves Flyby, Then Calls HomeIt's official: NASA's New Horizons spacecraft has gotten humanity's first up-close look at Pluto.
Spacecraft Completes Flyby Of Icy PlutoNASA's New Horizons spacecraft aimed to get up-close and personal with Pluto on Tuesday, on track to zoom within 7,800 miles of the small icy world left unexplored until now.