Latest articles by Leonard David
Moon and Mars Exploration Pioneer David McKay Dies at 76
McKay helped train the Apollo moonwalkers and led a study that claimed a Mars meteorite may contain signs of past life.
US Military's Robot Space Plane Settles Into Mystery Mission
The X-37B has been orbiting Earth on a mystery mission since Dec. 11, 2012.
Russian Meteor Fallout: Military Satellite Data Should Be Shared
Military satellites that monitor nuclear explosions could be vital meteor warning systems.
Tiny Japanese Satellite Beams Morse Code Messages from Space
The tiny FITSAT-1 is visible from the ground with binoculars when its lights are flashing.
Space Junk Menace: How to Deal with Orbital Debris
A truly international approach to cleaning up space junk is desperately needed, experts say.
'Planetary Parks' Could Protect Space Wilderness
There are good scientific and ethical reasons to protect parts of Mars and other celestial bodies, advocates say.
Alpha Station: Private Inflatable Space Outpost Envisioned
Commercial spaceflight company Bigelow Aerospace has grand plans for private space stations.
Inside NASA's Deal for an Inflatable Space Station Room
NASA's deal for a private inflatable space station room could catapult the technology beyond low-Earth orbit.
China's Potential Anti-Satellite Test Sparks US Concern
China could be planning an anti-satellite test as soon as Jan. 11, analysts say.
Is NASA Lost in Space or Aimed at Asteroid?
Experts weigh in on NASA's direction and its ultimate goals of sending astronauts into deep space.
Japan Launching Ambitious Asteroid-Sampling Mission in 2014
Japan's Hayabusa2 probe will use a lander and impactors to collect samples of asteroid 1999 JU3.
Maven's Haven: NASA's Next Mars Mission Preps for Launch
The next probe to be sent to orbit Mars is being readied for liftoff.
Chinese Spacecraft Flies by Asteroid Toutatis
The Chinese Chang'e-2 probe flew by an asteroid that just made a close visit of Earth.
Is Russia's Robotic Space Program Headed for a Renaissance?
Despite some recent, high-profile failures, Russia has ambitious space plans in the works.
Secretive Air Force Space Plane Ready for Tuesday Liftoff
The third mission of the Air Force's X-37B program will blast off this week.
NASA's Phonesat Project Turns Smartphones Into Satellites
NASA is using smartphones to power tiny satellites of the 21st century.
Does the Moon Have Levitating Lunar Dust?
NASA's LADEE moon mission takes aim at the levitating lunar dust mystery.
New Delay for Mysterious Military Space Plane Launch
The unmanned X-37B robot space plane mission is now expected to fly in December.
Boom! NASA to Demolish Spacecraft in the Name of Science
NASA and the Air Force are building a satellite just to obliterate it in the lab.
Launch of Air Force Secret Space Plane Delayed Again
The third launch of an X-37B spacecraft has been delayed due to a rocket engine glitch.
Future Mars Missions: Can Humans Trump Robots?
When it comes to Mars sample return missions, it's humans vs. robots.
China Eyes New Rockets for Space Station, Moon Missions
China wants its Long March 5 to be flying by 2014.
Mars Methane Mystery: Curiosity Rover May Find New Clues
The rover's observations could help determine if Martian methane is biological in origin.
