Liftoff of the Long March 3B, like a similar launcher shown here, occurred at 4:50 a.m. Beijing Time April 30, carrying the 12th and 13th satellites for the Beidou global navigation system. Photo Credit: Xichang Satellite Launch Center.
In an unusual move China has launched two Beidou navigation satellites on the same Long March […]
The Operational Land Imager (OLI) on Landsat 8 captured this image of the Potomac River and canal on September 27, 2016. The image shows the stretch between Hancock and Cumberland, Maryland—about 97 kilometers (60 miles) if you were to hike or bike along the towpath between these two towns. West Virginia is south of the river. Read More