Astronomers may have misread cosmic acceleration for 27 years. The universe may be slowing down, not speeding up.
For decades, we have been taught that the universe is expanding faster and faster. That belief has influenced our view of distant galaxies, how cosmologists have built their theories, and how ...
A new mapping of our galaxy has just revealed cosmic landscapes never seen before—a Milky Way with supernatural colors that ...
A colossal black hole 10 billion light-years away has been caught devouring one of the universe’s biggest stars, unleashing a ...