A group of scientists has proposed building a giant space curtain to reduce global warming and shield Earth from solar radiation. Spanning as much as 4 million square kilometers, this megastructure aimed to fight “climate change” would be located about 1 million miles from Earth, in an area known as the Sun-Earth Lagrange-1 point, according to The Messenger, a news website launched in May. The point marks the area between the sun and the Earth where the combined gravitational forces of the star and planet create equilibrium that allows a spacecraft to be “parked,” according to Space.com. Upon installation, the...