Before sending humans to Mars, NASA will first return humans to the Moon’s surface to test its technology and train ...

Since 2009, China has advanced its territorial claims in this region through a variety of tactics—such as reclaiming land, militarizing ... Moreover, to try to win before fighting, China could ...

Europa Clipper is scheduled to launch this month on a mission to explore Europa, an icy moon of Jupiter that scientists ... A cloud left the sun just 10 seconds before the Baily's beads appeared ...

Cable cars were invented by Andrew Smith Hallidie here in San Francisco in 1873. Hallidie's cable car system was based on early mining conveyance systems and dominated the city’s transit scene for ...