Space.com2 天
Satellites map Earth's ocean floors in unprecedented detail
A newly-deployed satellite has created the most-detailed map yet of the ocean floor, finding hundreds of hills and underwater ...
BBC6 年
Nasa's IceSat space laser makes height maps of Earth
Fall Meeting - the largest annual gathering of Earth and space scientists. The blue line is the laser's track across the scene (photo above) and the heights it detects (below) Nasa has been ...
Unlocking Ocean Secrets: NASA’s PACE and SWOT Reveal a Hidden World
One Earth satellite can see plankton that photosynthesize. The other measures water surface height. Together, their data ...
Forbes9 个月
April’s Total Solar Eclipse Is 360 Years Early. NASA’s Bizarre New Map Shows Why
NASA’s new “heat map” showing the geographical distribution of total solar eclipses has revealed that any specific location on Earth experiences a total solar eclipse once every 366 years ...
BBC2 年
Nasa's Swot satellite will survey millions of rivers and lakes
The American space agency Nasa has launched a satellite that's expected to transform our view of water on Earth. The Swot mission will map the precise height of rivers, reservoirs and lakes ...