Latest articles by Calla Cofield
What are pulsars?
Reference Pulsars are 'cosmic lighthouses' that when seen from Earth appear to be flickering stars, but actually consist of exotic stellar remnants called neutron stars.
Zoom Through the Famous Orion Nebula with NASA's Incredible 3D Video
Take a tour of one of the most famous star-forming gas clouds in the night sky, the Orion Nebula, with a new 3D visualization.
DIY Moon Kit from NASA Helps You Track Lunar Phases
Make a New Year's resolution to get out and look at the moon more often, with help from a free, do-it-yourself Moon Phases Calendar and Calculator from NASA.
See the Sharpest-Ever View of Mercury's Transit Across the Sun
A new video shows the highest- spatial- resolution view of Mercury migrating across the surface of the sun. The images were captured by the New Solar Telescope in California, on May 9.
7 Far-Out Summer Vacation Ideas for Science Fiction Fans
Embrace your love of science fiction this summer. Here's how to celebrate "Star Trek," see sci-fi museum exhibits, or visit natural wonders that inspired great science fiction.
NASA Centers to Visit for an Out of This World Vacation
NASA visitor centers can make fantastic vacation stops for space fans. Here's a list of centers to visit and details about what to expect when you go.
5 Great Summer Vacation Ideas for Space Lovers
Connect with the cosmos this summer. Here’s where to see a rocket launch, visit a space shuttle, go to space camp or do some live stargazing.
Unlikely Duo Teams Up for 'One Strange Rock': Q&A with Chris Hadfield and Darren Aronofsky
Filmmaker Darren Aronofsky and astronaut Chris Hadfield — two men with very different career paths — talked about their shared passion for the upcoming documentary show "One Strange Rock."
NASA's New Spacesuit Has a Built-In Toilet
NASA is developing a spacesuit with a built-in toilet system, something the agency hasn't used regularly since the Apollo era.
Astronomers Will Fight to Save WFIRST Space Telescope from Being Axed
Leaders of the American Astronomical Society have denounced the White House's proposed cancellation of NASA's next major space science mission, the Wide Field Infrared Survey Telescope (WFIRST).
Mars Meteorite Will Return to the Red Planet with NASA Rover
A chunk of rock that was once part of Mars, but landed on Earth as a meteorite, will return to the Red Planet aboard a NASA rover set to launch in 2020.
Animation Tool Helps Alien-Hunting Scientists Track a Planet's Habitable Zone
A planet orbiting in the "habitable zone" of its parent star may host a critical ingredient for life as we know it. But what if the habitable zone is unstable? Can life still thrive there?
What Would It Mean for Astronomers If the WFIRST Space Telescope Is Killed?
The White House budget proposal calls for the termination of the WFIRST mission. Here's how astrophysicists are reacting.
Watch Elon Musk React to Falcon Heavy Launch in Exclusive National Geographic Video
An exclusive video from National Geographic shows Elon Musk's surprised, joyful reaction to the successful first launch of a SpaceX Falcon Heavy rocket on Feb. 6.
Out-of-This-World Photos from Falcon Heavy's Historic Debut Flight
Here are some of our favorite photos from the SpaceX Falcon Heavy launch today (Feb. 6).
Rivalry or Bromance? Elon Musk and Jeff Bezos Tweet Each Other Ahead of Falcon Heavy Launch
Jeff Bezos tweeted well wishes at Elon Musk ahead of the Falcon Heavy's maiden flight — and Musk's response has the internet talking about a bromance between these two spaceflight entrepreneurs.
Goodnight, Moon! Super Blue Blood Moon Eclipse Captured in Amazing Photos
Skywatchers around the world took their cameras out to capture the total lunar eclipse of 2018. Here are some of our favorite snapshots.
Signal Detected by Amateur Astronomer Came from Long-Lost Satellite, NASA Confirms
An amateur astronomer appears to have made contact with the Imager for Magnetopause-to-Aurora Global Exploration (IMAGE) satellite, which lost contact with NASA in 2005.
