Space debris

Animated depiction of a spacecraft deploying a drag sail in orbit
Deorbiting satellite technology: A partial answer to the serious space debris problem makes its debut
Space has become a trash heap – new help may be on the way
Need to pay attention: 75% of the orbital debris detected could not be matched to known objects in public satellite catalogues
New space debris removal technology: Plasma Thruster
A giant Pac-Man to gobble up space debris
A blueprint for clearing the skies of space debris
Gecko Grippers Get a Microgravity Test Flight
Lawrence Livermore ‘space cops’ to help control traffic in space
A Solution for the Space Junk Problem?
Laser Asteroid Deflection
Swiss satellite being sent to clean up the mess in outer space
DARPA’s Plan To Harvest Space Junk For New Satellites
New control system will allow satellites to ‘think for themselves’
Asteroid Deflection: What If a Huge Asteroid Was Going to Slam Into Earth?
Nanosatellite to help keep space clean