Explore, interact, and download historical topographic maps from the USGS free of charge.
Source: USGS Historical Topographic Maps | topoView
“A group at NASA’s Johnson Space Center has successfully tested an electromagnetic (EM) propulsion drive in a vacuum – a major breakthrough for a multi-year international effort comprising several competing research teams. Thrust measurements of the EM Drive defy classical physics’ expectations that such a closed (microwave) cavity should be unusable for space propulsion because of the law of conservation of momentum.”
Tesla Motors says it is making a foray into the challenge of how to use the sun’s energy when it isn’t shining, with a fleet of battery systems for homeowners, businesses and utilities.
Source: Tesla Ventures Into Solar Power Storage for Home and Business
Our universe has a weird cold spot that is puzzling scientists. Is it a sign that there’s another universe?
Source: Is There Another Universe? | DNews | TestTube
For the first time, images from NASA’s New Horizons spacecraft are revealing bright and dark regions on the surface of faraway Pluto – the primary target of the New Horizons close flyby in mid-July.
Source: NASA’s New Horizons Detects Surface Features on Pluto | NASA
The astronauts and cosmonauts on the International Space Station are not at risk of running out of essential supplies, NASA officials said Tuesday (April 28) when a robotic Russian cargo ship suffered a serious malfunction after reaching orbit.
Source: Space Station Well-Supplied Despite Out-Of-Control Spacecraft