The Milky Way galaxy has hundreds of millions of promising targets to probe for signs of life outside our solar system, a University of Florida study suggests.
Astronomers are revelling in newly documented images showing the closest supernova to Earth from the last five years; 21 million light years close, to be exact.
Kepler-1658 is around 5 million miles away from its star, but it s spiraling closer and closer, eventually leading to collision and ultimate obliteration , Harvard experts say.
In a new paper, University of Rochester scientists suggest hollowing out an asteroid, increasing its spin to create artificial gravity and filling it with buildings.